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The Mosquito Ring Tone: This Adult Can Hear It!

The NY Times published a story on the Mosquito Ringtone (also known as Teen Buzz) this morning. Allegedly inaudible to adults, this 17Khz ringtone has become popular among teens looking to be able to send and receive text messages surreptitiously in class. They even included a sample of the ringtone, so you could determine for yourself whether it’s audible or not.

Well, I had no trouble hearing it, and according to the convenient chart provided (reproduced at left), at the age of 42 most people my age can’t hear anything beyond 13Khz. Apparently, I am more youthful than I thought…

Wondering what I could hear, I took a quick trip to the NCH Swift Sound website, and downloaded the NCH Tone Generator application. This little tool is used by audio engineers to generate various different kinds of tones ranging from square waves to pink noise to sine waves, and a bunch more. I generated a four different sets of tones at 15Khz, 16Khz, 17Khz, and 18Khz and listened to them, comparing them with the mosquito. The mosquito is a very dirty tone, with lots of noise in it. Perhaps that’s because it’s been converted to MP3, or perhaps it’s not a pure sine wave. In any case, while the allegedly 17Khz mosquito tone is quite audible, I had difficulty hearing a true 17Khz sine wave. The 18Khz tone was inaudible. You can listen to all four WAV files for yourself and do your own comparison. I recommend not turning the volume way up. Despite the fact that they are nearly inaudible, they are still very high energy sound, and my ears were sore after several listenings.

{ 565 comments… add one }

  • Jeremy Wright June 12, 2006, 2:24 pm

    Alec, I could hear all of the tones you posted except the last one. I'm 26. It was surprising to me that I couldn't hear the last one, since the previous ones were so clear. Also a little depressing, since I've got a great ear for sound (I've produced records and such).

    I'll get over it though 😉

    • John March 30, 2015, 6:24 pm

      A good ear for sound and a good ear for music are two different things.

  • Alec June 12, 2006, 2:49 pm

    I was surprised at what I could hear, actually. I remember my dad being very tone deaf in the upper registers when I was a kid.

    • meakalya May 17, 2011, 9:11 pm

      yeah well my teacher can here it but in other classes they use it to text and it hurts my ears

  • PhoneBoy June 12, 2006, 5:49 pm

    Early thirties and I can hear them all except the 18 Khz sound, which still makes my ears hurt.

  • Mathew Ingram June 12, 2006, 6:17 pm

    Damn. We're the same age, Alec, and yet I couldn't hear a damn thing — not on any of them. I guess I know what that means… too much standing close to the stage at those ZZ Top and Foreigner concerts.

  • Alec June 12, 2006, 6:37 pm

    :) I think it must have been your taste in music Mathew… I was listening to the Pistols and the Clash…

  • Jeremy Wright June 13, 2006, 4:49 am

    Definitely taste in music. *shudder* @ ZZ Top.

  • Mathew Ingram June 13, 2006, 7:45 am

    In my defence, I was living in a small town in rural New Brunswick at the time, so I didn't get access to the Pistols or the Clash until much later :-)

    I still love ZZ Top though — sorry Jeremy.

  • Glen P June 14, 2006, 12:42 pm

    I am 43 and could hear all notes with ease..I am a migraine sufferer and at all times I hear a high pitch whine..that is why I always have the TV or radio goinmg ..to drown out the sound …but the sound generator was a much lower tone then I usually hear ..

  • Glen P June 14, 2006, 12:49 pm

    I just downloaded the tone generator…couldn't find a tone I couldn't hear ..though some were very annoying ..and some tougher to hear.then the majority

  • bernadette June 15, 2006, 12:52 am

    Well i am 9 years old and i can hear all of them its very annoying but i can use my phone in school!!! Ye haaaa!!!

  • Steven June 15, 2006, 2:38 am

    I'm aproaching 29 and can hear them all. All my life i've been able to hear high pitches (i can hear it when the TV is on standby).

  • yordi June 15, 2006, 8:36 am

    i'm 12 years old and i can hear them all except the last one

  • yordi June 15, 2006, 8:36 am

    well i'm 13 years old and i can hear them all except the last one

  • Kelly June 15, 2006, 2:28 pm

    I can hear the mosquito just fine but, the pure sine waves were harder. I could only hear the first and second. More like pressure when listening to the sine waves. Oh yes, I am ancient by kid standards, a graceful 50 thankyou.

  • kay June 15, 2006, 3:22 pm

    i'm 14 and i can't hear the last two, but i can hear the mosquito ring. I thought the t.v. on stand-by thing was all in my head, but i guess they can't hear that either.

  • Joe June 15, 2006, 4:30 pm

    Have any of you done experiments with it yet? I played it in my school library and really confused some teachers.

  • max June 15, 2006, 8:14 pm

    I can hear before 16900KHz. 17959 can't :(( I'm 28

  • Jake June 16, 2006, 4:21 am

    I am 22, can hear all but the 18 kHz, it seems as if a lot of people over 25 can still hear the mosquito tone, so whats the big deal its not that big of a break-through.

  • Jonny "teh&quot June 16, 2006, 7:48 am

    Those of you despairing of your inability to hear the 18kHz tone, I wonder what your transducer is? Many consumer-grade speakers and headphones roll off significantly in those octaves. You might want to try some quality speakers before you consider yourself partiually deaf.

  • Amideaf? June 16, 2006, 9:10 am

    I'm 15 and i can only hear 18 [faintly] and lower. also…. Bernadette is 9 and already has a phone? I put it on an ipod and brought it in to school. My teacher couldn't hear but everyone was laughing so I got kicked out. When I got kicked out I played it through the door and everyone continued laughing. It really pissed my teacher off!

  • Ms Vara June 16, 2006, 1:18 pm

    Oh my god……..I'm a high school teacher and for the first time I felt embarrased and deaf in front of my kids when they told me about this (on the last day of school). I could not hear any of them except for one. Keep up the great inventions !!!
    Ms. V

  • Yeah right, I'l June 17, 2006, 6:14 pm

    I could hear all of them. I'm 13 years old and I knew already that I would be able to, but I went ahead and did it anyways for laughs. I guess keep up the good work, but I don't really care if you do or not.

  • Lauren June 17, 2006, 7:33 pm

    I can hear them all. I'm 14.

  • Dan June 17, 2006, 7:57 pm

    I'm 45 and can hear the ring tone no problem and from a distance too. I've avoided loud sounds all my life, wear earplugs when going to the movies, and if seldom use headphones and when I do keep the volume very very low. I can hear the 18kHz sine wav, but not the others although I'm in the tv room with the hockey game on. By comparison, my 33 yr old sister can hear all the sine waves even across the room (with the tv on), and my 36 yr old brother-in-law can only hear 15 and 16 across the room, and the 17 halfway across the room (again, with the hockey game on).

  • Benjabang June 18, 2006, 7:20 am

    It hurts my ears.

  • Alec June 18, 2006, 11:25 am

    Hey there "Yeah righ…"… just wanted to let you know that I saved you the embarrassment of posting the other two very immature posts you wrote. I deleted them. If you still want them posted, post them again, and I'll publish them.

  • Neil June 19, 2006, 3:45 pm

    Hmmm. I'm 35, and I can hear all of them. Whether this ability will make me rich and famous is up for debate. But I can certainly hear the Mosquito, as well as the 4 frequencies above. And I hate loud music. I'm wondering whether the warnings we were given as children about loud music were actually correct…

  • David June 19, 2006, 4:41 pm

    OK……. I can hear them all and I am 61 !!!! But that's a very good thing since I am an audio engineer. I have been blessed with very good hearing since I was first tested in my college days, and I test my hearing on a regular basis. But you guys who can't hear the tones should keep in mind that it might not be your hearing…. it could very well be your computer speakers. Some of the speakers cannot reproduce above about 12k. Try some good quality headphones. BTW, most people reach their peak of hearing at about age 19 and then start a gradual downward slope.

  • Soubriquet June 19, 2006, 11:29 pm

    I could hear it fine, and I am 48. Could be the distance at which you can hear it is different, though.

    Another possibility: some can't hear it because they are just a genetic variation, like the "Supertasters" of

    the world…those people identified by scientists who can taste certain things that no one else can taste.

    I think the researchers jumped to the conclusion that it was age because there are age-related declines in

    hearing…that fact does not allow you to conclude that all differences in hearing are due to age. You can say

    age contributes, but you can not say it exclusively causes the difference.

  • Thomas June 20, 2006, 12:55 am

    Im 19, listened to all of them and can hear all of then clear across my room (about 12 feet) from my headphones. then went to play with the NCH tone generator and cranked it upto 22khz (max my headphones can process) and still heard it clear as a bell.

  • Josh Terrill June 20, 2006, 5:47 am

    I can hear all of them just fine. I am 13 years old. I think this is amazing! I have an idea…If sombody would like to email me
    I will share it with you. I think it might work…

  • Judi in St. Louis June 20, 2006, 2:16 pm

    I'm 56 and I could hear all the tones quite clearly.

    Like Glen P who wrote that "at all times I hear a high pitch whine," I too hear an ongoing buzz at a very high pitch, much higher than the ones posted. I will try the tone generator to see if I can identify the frequency I hear.

    I am also a "Hum" hearer – one of a worldwide group who hears ultra-low infrasound with pulses and beats that we think may be from drilling or other industry, and is sometimes known as the Taos Hum. http://groups.yahoo.com/group/humforum/

  • C in Cincy June 20, 2006, 8:46 pm

    Thanks for the link to the tone generator! I was feeling exceptionally old (42 next month) because I couldn't hear any of your samples. After playing around with the tone generator, at least I know I'm not too far off the norm for my age, at least. And I discovered that the persistant ringing in my ears is resonating at nearly exactly 13000. I can hear, just barely, 13773.02–but just enough that I can clearly tell that the pitch is higher than my tinnitus. After that, nada. You may also be amused to know that my dog was totally nonplussed about the whole thing, but the testing drove one of my cats positively batty! She could clearly tell when I was starting and stopping pitches that I had no hope of hearing myself.

  • >>>>> June 21, 2006, 10:07 am

    ye i can hear dem im 13

  • lauren June 21, 2006, 5:00 pm

    I can't hear 16961 Hz– I just feel a slight change, but I can hear the last, which I find odd. I turned it up and tried again, and now my ears hurt. The mosquito ringtone is like sandpaper on my teeth. I hope any kid who uses that around me is prepared to get smacked by a girl.

  • M.H. June 21, 2006, 10:23 pm

    Hi, I am living in Japan. This entry was mentioned and linked from one of IT news site in Japan (http://www.pc-view.net/), and I have visited there.
    This topic reminds me my old experience in my childhood. In those years, I was always being bugged by some strange noisy pulse of sound in my ears when I was in places around main streets of my home city. In later year, when I was 17 or 18, I realized that was a supersonic pulses transmitted by traffic sensor set on the top of the electric pole, and I had just understood it natural that all other people didn't care about such unpleasant noises, simply they couldn't hear that.
    Today, I'm almost 41 years old, I tested my ears and realized I can hear 16kHz, but cannot hear all higher frequencies. It is shocking, though I could never check how high that traffic sensor's sound frequency was. Thanks for having your great blog entry here, and helping me having my great memories back.

  • bob June 22, 2006, 4:51 am

    I am 37 and heard all of them. '70s era ZZTop is excellent. Punk is for retards.

  • Alec June 22, 2006, 6:35 am

    Welcome to Japanese visitors, and thanks for letting me know where the traffic was coming from, M.H.

  • Ingrid J. Goddard June 22, 2006, 6:49 am

    Well, I'm 32 years old and I can hear all of the sounds even the last one! It's a little fainter than the others but I can still hear it. I work with people of all ages and ethnic backgrounds and we realized that the caucasian women aged 50 and up couldn't hear the the mosquito and higher, the black women aged 50 and up could hear only the mosquito and the men aged 50 and up of both ethnicities couldn't hear a thing! So what does this mean?…

  • Garry June 22, 2006, 8:44 am

    I'm 32 and I can hear only the first one :(. If you want to try different frequencies on a mobile, go to <a href="http://www.mymadcow.com,” target=”_blank”>www.mymadcow.com, they have high pitch mp3s for mobiles. Does anyone know which frequency is the highest a human can hear? Around 20 kHz?

  • Brad June 22, 2006, 9:21 am

    I can't even get those mosquito rings to play, when I click on it, it moves to a different page saying this page can not be found

  • Ashley June 22, 2006, 2:48 pm

    I'm 19, so no surprise that I could hear them all just fine, but the mosquito and the first two others irritated my senses, but the higher two did not bother me so much. Don't know if that's significant, or just opinion.

  • Melissa June 25, 2006, 8:46 am

    A 9-year old has a cell phone?
    What is this world coming to???

    I'm 16, and I can hear them all just fine.
    My brother played it for my dad on his computer, and he couldn't hear it.
    So I threatened to set it as my dad's ringtone on his cell phone so he couldn't hear his own phone ring. xD

  • Fsa3 June 25, 2006, 12:24 pm

    Although I can hear them all, I find it harder to hear the 16961kHz than the 17959kHz.
    I'm 18.

  • CaCo June 25, 2006, 10:51 pm

    I'm 17 and I can hear them all!! ^^.. but now my ears still hurts me!!!!

  • Kevin June 26, 2006, 10:19 am

    Does it posible to download this riigner on cell phone ???

  • CARLOS VALDES June 27, 2006, 11:12 am


  • MANSOOF June 28, 2006, 11:40 am

    KEEP IT UP !

    THANK'S ! ! !

  • Katina Mooneyham June 29, 2006, 2:08 pm

    I downloaded this earlier just to test on my 13 year old daughter. She said it gave her a headache. I definitely heard it (not quite 30 though, but I will be in a few months, close enough!). My kids and my husband call me Sentinel Mom though because I hear, smell and see other things that many people do not (not in a paranormal way). It's just my senses are keen usually.

    The sound gave me a headache! It was quite irritating.

  • Justin June 30, 2006, 7:36 am

    man, is it bad that im 17 and cant hear any of them?

    i would say maybe its all the concerts ive been to (seen over 100 bands, and alot more to come…) but i dont think this really has to do with if your deaf or not, but more so just what range your ears are capable of hearing.

  • kayla June 30, 2006, 11:09 am

    I'm 14; and I can barely hear the last one. ^^ .. i guess that's what real loud headphones does to you. I downloaded the software so I could convert it to an mp3 to send it to my phone. Since every other site requires you to pay outraegeous fees just for the tone.

  • Mike Gerbil July 2, 2006, 3:18 am

    I'm 22 and could only "hear" the first two, though they all hurt my ears, especially that last one.

  • Aditya Pratap V. July 2, 2006, 4:22 am

    I'm 37 year old guy and I could hear all of them. However, they are painfull to the ear.

  • Riccardo July 2, 2006, 5:10 am


    I could hear them all just fine, but right now I feel a little bit dizzy and have a headache. Oh, I'm 20.


  • soubriquet July 2, 2006, 5:35 am

    56 years old, a history of plenty of standing in front of speaker stacks at rock gigs, working in noisy environments, power tools, aero engines, gunfire, explosions… So plenty of hearing abuse likely. But I could hear all but the last one, and i was aware of that whilst it played, but as a sensation of pressur, rather than sound.
    And I've been a teacher, I'd play a medley of these just to get my revenge on irritating kids!
    Oh, and I'm a different Soubriquet to the earlier poster, So… Hello Soub!

  • Mark July 2, 2006, 5:36 am

    At age 56 I could heatr even the 17959 pure sine wave (that last one was a bit faint). They all were uncomfortable to listen to.

  • ugotslew July 2, 2006, 5:38 am

    well with a name like that ^ :)
    i'm 18 and i listen to a lot of loud music, but my hearing hasn't gone yet!

    i could hear all of them except the last one, maybe its recorded bad or something, but next time (if anyone is reading this) turn the volume up just a lil bit.

  • Nick July 2, 2006, 6:42 am

    I'll be 36 in 2 weeks, and I heard all the tones. This really suprises me because I used to be one of those kids who always listened to headphone music to loud.

  • Chris July 2, 2006, 7:08 am

    I'm 51 and undergoing gene therapy in a clinical test environment
    for hearing restoration. Via tone sweep my range is still 15.8Khz,
    but the promise of 5 year old ear sensitivity was too hard to resist.
    My range when 12 was 22khz – lets see if this test group I'm in produces any results.
    Its not surprising that the mosquito is audible – its a very dirty tone.
    i think most of the young repliers leaving their proud 'i can hear it' replies will be near deaf
    by 30 without precautions. My idea of near deaf is way below functional deafness.
    Earbuds will flatten those young ears within 5 years.

  • Tempie July 2, 2006, 7:31 am

    I'm 12 years old and I can hear all of them. I'm going to try it out on my parents.

  • Tempie July 2, 2006, 7:35 am

    I read about this in a magazine and I think I realized something!!!
    Outside of a Costco I've been to I hear that Mosquito noise. They play it ever other second. Repeatedly. It bothered me so I asked my parents "What's that noise?" And they said "I don't hear any noise." But my little sister heard it. Perhaps that' what it was, though, they've had it for a while now, before I read about it.

  • Noah July 2, 2006, 7:38 am

    27 years old and I can hear them all ok.
    Although listening to these sounds does make me feel a little nauseous.

  • Arrichion July 2, 2006, 7:45 am

    Well, all people who has normal hearing should be able to hear up to 20kHz. That chart shows how high pitch sound people can hear at 60dB. By the way that mosquito sound is 15kHz not 17kHz and soundclips are not normalized to same level. Generated ones are little bit quieter.

  • teacher July 2, 2006, 8:13 am

    I can't hear them. I have significant hearing loss in bothe ears. This occured when I was stationed in Irag. A very large IED went off near my vehicle. I now teach and I bought every kid in class a Ring Detecting Pen from http://www.elstonsystems.com/prod/cellular_pen_ce…. Kids with the Samsung models are not allowed to bring those into class.

  • Philip July 2, 2006, 8:21 am

    I'm 18 and can hear all of the souds, interesting experiment it even hurts my ears i hear em so well!

  • Koliedrus July 2, 2006, 8:24 am

    Ditto what Nick wrote aside from age. I'm 42.

    It's not just about the frequency of the tone, however. Most people ignore high frequency sounds in the same way that they ignore the fabric of their clothes stimulating the nerves of their skin. It takes a conscious effort to pay attention to something we tend to ignore. Loading the tone onto a phone, carrying it and expecting to be called accomplishes just that.

    In the classroom, articles such as this one accomplish much the same for teachers. But I think it's safe to say that a very small percentage of even the best ears here have actually recognized the tone "in the wild". It's not just our ability to hear well that makes the tone so successful at what it's meant to do; it's the exploitation of our brain's natural tendency to filter out extraneous stimuli.

    It's is very near-fetched to compensate for these shortfalls so that teachers can teach instead of reacting to every buzz in their ear. Simply put, the student needs a device to produce the sound. He/she cannot generate it with his/her voice. (Mariah Carey's protege'? No. Facial contortions would give it away. That and a screaming classroom with blood coming from their ears.)

    A passive high-frequency detector that measures sudden pulses of sound within a given range could be placed on the teacher's desk. When the predetermined parameters are met, a flashing red light and low-pitched buzz could alert the teacher to instruct her students to "turn off your phone or lose it".

    Better yet, three detectors (one centrally located in front of the classroom and one in each rear corner) could be used to triangulate the exact location of the sound. The robot that comes into the classroom to assign homework to the student needs some more concept design work. I'm partial to the wiiiirrrr-clunk. wiiiiirrr-clunk as it approaches the door. Crashing through the walls would be a bit much.

  • Koliedrus July 2, 2006, 8:40 am

    Tempie, The sound you and your sister heard at Costco is something that's been used for years. It's meant to disperse groups of "kids" from simply hanging out in establishments. I stopped going to a particular Sears store long ago because the shopping experience was less than enjoyable. I wonder now just how many other places don't get my business because of that whine…

    Here again, I'm 42 and still hear it. Age may have allowed me to tolerate the sound but perhaps they didn't anticipate the years of conditioning.

  • Boll July 2, 2006, 8:55 am

    Well, i am 18 and i could hear all of them pretty easily. But for people who is not able to hear it, you should check if your speakers/headphones are really able to reproduce the frequency generated. Not all are able – 'generic' speakers or headphones may not have a broad frequency range (generally they dont), and you could be not hearing it for this reason.

  • MatthewS July 2, 2006, 5:03 pm

    I'm 36 and am definately hard of hearing in one ear. I could hear:

    15102 Hz pure sine wave
    16000 Hz pure sine wave

    pretty well in my right ear, but not my left.

    My daughter, who is almost six, could hear them all. We had to play the last one twice though.

  • MatthewS July 2, 2006, 5:06 pm

    I could hear the provided sample though.

  • Mike July 3, 2006, 7:19 am

    I am 40 and can hear the 15KHz and 16KHz tones.

    Has anybody tried the mosquito ringtones at http://www.aubraux.com/mosquito-ring-tones.php ?

    They have some fancy high frequency ringtones and the pure sine wave ones too.

  • L. B. July 3, 2006, 8:56 pm

    I'm 35 and can hear all of the tones you've provided Alec. Thanks for the link to the NCH Tone Generator.
    It seems there is considerable discrepancy between age-related hearing loss as shown in the chart and the replies above. Koliedrus has an interesting point regarding real-world behaviour, however, it doesn't seem to explain this data since (presumably) the chart is based upon clinical testing rather than the sort of automatic prioritizing to which Koliedrus refers.
    At least some of the mosquito ringtones are not 17 KHz as the 'original' is supposed to be; but rather range 1 KHz above and below a main frequency of 15 KHz. (So says my audio software's spectral analysis of a ringtone I downloaded).
    As for the appropriate classroom response to the tone, rather than a robot I'd be in favour of some spidery-type thing dropping from the ceiling to devour the kid. Gruesome and instructive.

  • J.D. July 4, 2006, 5:25 pm

    I am 14 and could listen to all of them, my grandfather (65) also could hear all of them, so unless he is a special case, I'd say the story is untrue

  • Alec July 4, 2006, 10:05 pm

    Love it L.B.! What's te spectral analysis software you're using?

  • Melissa July 5, 2006, 8:50 am

    yeahh ok so i can't hear the Mosquito ringtone and I'm 14 so whats that about??

  • jc July 5, 2006, 9:49 am

    I must be missing something here. Why would kids use this ringtone instead of just setting their phones to silent/vibrate mode in the classroom?

  • FireBath July 7, 2006, 11:03 pm

    So let me see if I understand this? Youngsters use ringtones for their celular phones so ONLY they can hear… Now why would they do that? I mean you can't realy talk to the phone in classrooms right? so what is the use? There is a guy in Japan who invented a device that could kill a cell phone by a touch of a button, so as a teacher you get that plus a ultrasound detector and fry the loosers. On the other hand why would you let them ring whay do you care. If they are annoyng to you just use the cellphone killer.

  • Steve July 8, 2006, 2:58 pm

    I'm 24 and could easily hear all of them.

  • Hänni July 10, 2006, 6:30 am

    I could hear all four, but yeah my ears tickle now.

  • slugcountry July 10, 2006, 12:04 pm

    I could hear them all easily, unfortunately I think the proggy listed is bugged, since past 18khz it seems to go into a lower tone… I'm curious to see just how high I can go though

  • Alec July 10, 2006, 2:26 pm

    Hey Sly,

    A drop in the tone on the 18khz signal is probably due to the capabilities of your speakers. I observed the same thing with cheap speakers myself.

  • Jinx July 10, 2006, 7:05 pm

    My friend and I tried this on mymadcow.com; we could both hear all of these but on the other website I was the only one who could hear 19 khz… My friend's mom couldn't hear any of them, and my dad could hear up to 16 khz. Very coo'…

  • Crystal July 12, 2006, 10:02 pm

    I am 25 and heard up through 17 clearly. The 18 sounded like a faint whining, but it wasn't as loud as the other three, although it really hurt my ears. I'm glad my students are too young to use cellphones at school.

  • Squirty July 13, 2006, 11:09 am

    I could only hear the mosiquito and the first two. But the other two made my ears turn red! :)

  • john July 14, 2006, 7:20 pm

    Well I had a range of ages here and we all pretty well fit the curve. It was from ouch turn it down to me I can just hear the ring tone. I read the warning about the sound levels to late and 20 minutes later and my ears still hurt…Oh yes I am 48 the 19, 21.

  • ali July 14, 2006, 9:15 pm

    Umm i'm 12 and i could hear the first two, but not all the rest of them. I dont think this will be very popular cause i mean, not EVERY kid will have the same result i got and not EVERY adult will get the same result as another, and i mean, if i had my cell phone at school and someone texted me, i would not be able to hear that because of like the teacher talking or my class mates talking, or just period cause it would be in my back pack and its not loud enough. I dunno…maybe i'm wrong. ;-|

  • Andy July 15, 2006, 8:28 am

    I can hear them all and I am 39…The last one was quite faint, however. I'm loving it…

  • JohnK July 15, 2006, 4:22 pm

    I could not hear the 18k tone but could hear the others at 34. I used a pair of headphones that should have a frequency response that high. I can easily hear CRT (television/monitor) whine. And I could easily hear the mosquito tone. I agree that it is grating.

    My biggest surprise from all of this is that cell phone ringers can even produce tones this high. I would not expect the hardware makers to bother with speakers that go to 17k.

  • Greg July 16, 2006, 10:52 am

    I'm 15 and I can hear all the sounds without any difficulty

  • AStarhy July 16, 2006, 6:07 pm

    i heard all of them neah and i'm 20.

  • Dan July 17, 2006, 10:35 am

    I am 27 and could hear them all… but the 18KHz sound could not be produced by my laptop speakers; I had to break out the earbuds to hear it. I am the youngest person at my office and no one else here was able to hear the ringtone.

  • Robert Marler July 18, 2006, 7:36 am

    As with so many other responders, I can easily hear all but the 18K tone. Note: I said easily. I think the problem is likely one mentioned by another responder: the speakers, but, hey, when I want music, I've got the hi-fi. By the way, I'm 62. I never listen to rock.

  • Gary Greene July 18, 2006, 9:15 pm

    Guess I'm just another data-point, but I'm 59 and I know I have hearing loss acquired in the USAF after 8 years service near flight lines (three years with my barracks next to the staging pad). The loss showed on my out-processing physical. _BUT_ I hear all the samples reasonably well EXCEPT the ring tone, which is barely audible in my right ear. Strange. Mkes me think there is something odd about the ring tone.

  • Kevino July 19, 2006, 12:18 am

    Eh? Could not hear a thing!But I can hear a real mosquito!

  • Shirl July 19, 2006, 11:35 am

    I'm 59 & I heard them all.

  • Seran July 19, 2006, 11:42 am

    am 22, could hear each one, but a little trouble on the last. definately heard it though. now to stop my ears from ringing….

  • Beth July 19, 2006, 12:27 pm

    Couldn't hear any of them, darn it, and neither could the other mid-40's person I work with. Too many rock concerts in our youths, i guess. But we can both hear our daughters THINKING ABOUT MISBEHAVING from the opposite end of the house…so I guess that's worth something!

    But my two 30-something co-workers could hear the mosquito and the 1500. My 23-year-old co-worker could hear mosquito, 15 & 16.

  • Tom Egan July 19, 2006, 2:53 pm

    I heard the mosquito and all 4 tones and Ill be 54 in Dec. I take event photos and music videos and am often in from of PA's etc.
    When it hurts I know its really loud and will be distorting the audio in , so I reposition. Loud is fine but once its annoying or painful to the individual you know you are doing permanent damage if you continue without ear protection.

  • fluter July 19, 2006, 7:36 pm

    I’m 32 and I couldn’y hear any of the tones … a friend of mine (30 yrs old) sais she heard all but the last two *weird*

  • De Argo July 20, 2006, 6:49 am

    That was intresting. I heard all of them but the skeeter then I went to the rigntone site mentioned above in the post. and could’nt hear nothing above 13k. Strange, but thats what made it really intresting to me.Either the frequincies are off on this sites samples or the other sites was.
    Still I think that the hearing aid business is gonna boom before long. All these young people riding in cars with 500 watt amps viberating everything within 100 feet.
    Oh, I’m 46.

  • kim July 23, 2006, 4:27 pm

    i can hear all ,but i can barly hear the17 one

  • kim July 23, 2006, 4:27 pm

    age 13

  • BUSY July 25, 2006, 10:02 pm

    I'm 17 and I can't hear anything above 14 hz.
    I feel embarrassed about it, but I think it's in my genetics.

  • marko July 26, 2006, 2:23 pm

    I am 28 and I could hear all of them, I also can hear TV on standby.

  • Paul S July 27, 2006, 4:05 am

    Dont worry you old lot!
    Im just a young 'un at 19 and I cant hear the 18Khz sound and the 17khz is quite quiet.

    Death metal bled my ears! doh!

  • Paul S July 27, 2006, 4:08 am

    oh … and whatever happened to putting your phone in your pocket on vibrate? 😛

  • Mike July 30, 2006, 4:37 am

    Just FYI for the people who mention hearing constant high pitched whines – that sounds like tinnitus, which actually isn't a hearing issue. Tinnitus is neurological – there is no sound to be heard and it's not coming through your ears. Conceptually/analogously, you can think of it as in internal feedback issue, though it doesn't even originate in the brain's aural "circuitry."

    Otherwise, this has been interesting. I'm 42 and always had "good hearing" in the ordinary sense of the term. I hear things others don't or before they notice them – including my brother's kids – and have excellent (NOT perfect) pitch. Whether it's my computer speakers or no, though, I can hear the NYT mosquito ring only slightly, and none of the sine waves at all. Will have try it out on better equipment but even still, I suspect I just can't hear them. Off to play with that tone generator…:)

  • evan July 30, 2006, 3:19 pm

    this ringtone is great but i cant find a website where u can get it without having to sign up for something or getting spammed. anyone know where i can find it without having to do the above? o yeah im 13. ^_^

  • Nick July 31, 2006, 10:09 am

    I'm 28 and could hear them all, so I went and downloaded the same tone generator. Figured out I could hear up to 20khz. Now my head hurts and my eyes are watering tho. Good psychological warfare for the office…. :)

  • hajir August 1, 2006, 1:51 am

    I am 17 and i can hear alll of them ,but my freind(same age as me) he cant hear the 17khz,HE use to hear to loud music (skazi,SUY,&….) and we think that is the reason he can't hear!!!

  • jim August 1, 2006, 6:40 am

    i am 15 and i can here all of them and anyone can hear all of them if the sound is turned all the way up on your comp

  • freddie August 1, 2006, 6:44 am

    I am turning 13 and can hear all of them clearly my father in 40's can barely hear the mosquito

  • Kate August 1, 2006, 11:49 pm

    Im 11 in a few days. Can hear every one except the last. >.>

  • Kate August 1, 2006, 11:56 pm

    Oh and also I asked my grandpa to listen and he could not even hear the mosquito. Will test my mum.

  • Nick August 2, 2006, 6:25 pm

    Seems like the mosquito tone really isn't 17 khz, or that its interspersed with other (lower) frequencies which render it audible to me. I say this because on the pure sine wave tests, I can barely hear the 16 khz sound, and everything above that is inaudible (yet still painful!). I'm 41, and have blasted my ears with high volume rock, guitar amps, etc., for much of my life. I don't miss the annoying high frequency sounds though–an unintended but pleasant consequence of all the years of hearing abuse!

  • Britny August 3, 2006, 10:29 pm

    Woot!! Yeak i like heard them all and im 17!!!

    I love this kid at my school Mictchell Dye!!!!!

    (He can't hear it!) :(

  • Conman Joe August 3, 2006, 11:29 pm

    Hmmz i heard them all very loud. When i generated my own with a program i could hear up to 20khz, maximum the program could generate, but just. Btw im 15.

  • sakura (japanese for August 5, 2006, 1:40 pm

    im 12 and i heard it just fine all my friends say it burns or makes their ears bleed etc.
    i personally think it sounds REALLY cool. any way i always hear really high pitches and really low pitches. and to any of you who tyhink im japanese im not. im ganna try to piss off my teachers on monday!!! ^_^

  • Gaz August 5, 2006, 3:34 pm

    I'm 22 and can hear all the tones from the other side of the room, I wonder if the volume on the speakers makes a difference to those who can't hear all of them, mines set to a comfortable listening volume, quite low, small speakers built into the monitor

  • sakura August 5, 2006, 7:31 pm

    i heard them all really clearly, my mom doest though :( im 12 well there still cool. i wonder if they can make them any higher???? if so i wanna listen to them!!!!

  • Karnage August 7, 2006, 9:07 pm

    Yah i heard them. And you could make them higher with Audition/Cool edit's tone generator, but your speaker system isn't made to reproduce those freq so no….

  • logan August 8, 2006, 1:11 am

    i can hear all of them but my dog went crazy when it heard them lol

  • Matt August 10, 2006, 6:25 pm

    im a 15 year old male and can hear it

  • Dorothy August 11, 2006, 9:08 am

    im 80 years old and i can hear it my grandson play it for me

  • chelsea August 11, 2006, 1:53 pm

    I just turned 14 years old, and i can only hear the first 2

  • Jessica August 12, 2006, 5:28 am

    I am 20 and heard te mosquito one very well, it actually hurt my ears…

  • Jessica August 12, 2006, 5:30 am

    ..In fact I heard all of them

  • SACHET August 14, 2006, 4:25 am

    i could hear all three im 15……they rok…i can fool any 1 now…….in skool at home……

  • Brian F August 15, 2006, 1:50 pm

    I could hear them all and so could some of the older guys at my work, it was fun to irritate the younger guys (22-25) they kept complaining. I'm 21


  • Brian August 17, 2006, 3:05 pm

    How accurate are the speakers on a computer to the frequencies they are supposed to be creating? In other words, are the computers accurately making noise at the frequencies the links say?
    BTW… 20 years old and heard all of them.

  • b0b August 18, 2006, 5:00 pm

    That was phenomenal! I'm 20 years old and I couldn't believe what I was hearing. Is it weird that I hear frequencies like this often? I hear them and I can't quite figure where they're coming from. lol =/ I may be mistaken but is that frequency equal to a B-flat in the 9th octave or is it higher?

  • FATMA August 19, 2006, 3:43 am

    I'm 13~but the last one is not so clear

  • Rodzynek August 20, 2006, 11:31 am

    Heya all ! Damnit,my mom (36 years old) heard all of them.I am a little big dissapointed, and i think there's something wrong ;s.

  • Hannah August 20, 2006, 5:08 pm

    I'm 18, i can hear them all.

  • Chris August 23, 2006, 11:47 am

    Can hear them all and am 18. Friend is 19 and can only hear the ring tone lol. Other friend is 20 and can hear all but the 18k. Dad is 41 and can hear the ringtone and the 15k only. Mum is 51 and cant hear any of them lol. Just for the record 17k Hz is C10 which is 2 octaves higher than the highest note on the piano.

  • Crystal Clear August 23, 2006, 5:49 pm

    I can hear all of them and im only 12 but im going to test it on my friend.

  • Shane August 23, 2006, 6:52 pm

    Strange…Im 34 and I hear all of them. The 16000 and 15102 hurt but the others don't bother me, but I can hear them. I never did like concerts cuz there too loud!

  • Dev August 25, 2006, 12:36 am

    I can hear all of them :)

  • Christina August 25, 2006, 11:49 am

    I'm 21 and I can only hear Mosquito and 15102!!

  • Aarin August 25, 2006, 11:09 pm

    Wow! I'm 12 i cant hear the last one…

  • hazza August 27, 2006, 4:37 am


  • coski August 27, 2006, 7:36 am

    they suck man, they gave me a mega headache

  • clance August 27, 2006, 8:18 pm

    im 14 (female) and i can only hear the first two! might have something to do with bad quality speakers though.

  • Crysta August 29, 2006, 4:49 am

    I am 34 and I can hear them but then I never got my wisdom teeth either. I guess I am just young at heart.

  • John Branch August 29, 2006, 6:59 pm

    I could hear them all loud and clear and I'm 29 years old.

  • JC August 30, 2006, 9:56 am

    Does anyone know the actual frequency of the commercial Mosquito, as the ringtone version freq changes from site to site. Ranging from 15 kHz to just above 17kHz. I'm looking to build a cheaper copy for some customers they dont wanna pay £500 a pop!!!

  • Jenni August 31, 2006, 3:40 am

    Woop woop.. I can hear them all.. I am great.. ha! altho the last one hurts.. I'm 17.. My fella's 22 n he couldn' hear the mosquito one.. tut.. aincient I tell you! My cat wasn't too keen on them either.. she jumped off my knee n ran away :(

  • crispy biscut August 31, 2006, 4:58 pm

    I like rock dudes i hear dem all! you suck i rock.

    Da end

  • Kevin September 1, 2006, 8:33 am

    Folks, if you're listening to these tones through earbuds (and you spent less than a $1000.00 on them), they don't reproduce sounds over 16khz. Buy a decent ($50.00) set of over the ear head phones (sennheiser is a good choice) and you'll probably hear this stuff, I must say I have to turn it up much louder than I would have in the past. FWIW, I'm 42 and I have tinitus. Unless those in their mid 20's have been listening to CD's with teh volume on 10 for the last 10 or 15 years, you probably can hear this stuff with the right speakers/headphones.

  • cray September 1, 2006, 10:26 am

    my mom(41) can hear all of theese mosquito sound:(:(:(:(

  • Grace September 1, 2006, 5:00 pm

    i'm only 15 and i cant hear past 1600.
    wtf mate?

  • BRups September 2, 2006, 1:09 am

    Justin, yes it has completely to do with your hearing ability. The fine hairs of your inner ear not only diminish with age, but also with hearing damage from listening to loud noise such as at a concert or being arround loud equipment constantly. The reason that you cannot hear it is likely because your hair inside the inner ear is damaged from the loud music. I listen to loud music in my car and can hear up to 19 KHz. I am 19 and my friend that is the same age as me but doesnt listen to loud music can hear 20 KHz. Baicaly dont fool yourself, loud music is damaging your hearing.

  • Jennifer September 2, 2006, 1:58 pm

    I am 44 and I can hear mosquito quite clearly ('ve heard that it is men who lose the higher tones from their hearing more readily with age; is this true ?); I can hear the next two, but the 169xxx and 17xxx hz were very faint. Does anyone else feel nauseated after listening to mosquito ? I don't listen to it with my volume near the limit, but I the sound gets to me, and it does, surreptiously, in a classroom too, where I tend to think there is some annoying high pitch from electronic equipment, but then figure out it's mosquito from the nausea. I'm not prone to it, e.g. never get seasick, etc. Anyone ?

    PS Cats hate these sounds—

  • Chong Hui September 2, 2006, 7:41 pm

    Lol kids rulz man I kep asking my mom and she still can't hear and said i was annoying dots =.="

  • victoria September 3, 2006, 11:52 am

    I hear noughting

  • victoria September 3, 2006, 11:53 am

    I 33 years old I hear noughting

  • David September 3, 2006, 11:09 pm

    When you read the original article it's quite interesting on the method used for getting holding of this irritating tone; btw I'm 33 and I can hear all of them albeit the highest is a push, especially when you combine it with this from The Register:- http://www.theregister.co.uk/2006/09/04/mobile_di

  • Nate-dogg September 3, 2006, 11:17 pm

    I can hear all but the 17959KHZ, I have a headach now so I dont know how teens can stand it… well I am 19 and I cant stand it, I'd rather use vibrate on my phone at college than put up with this

  • Steve September 4, 2006, 2:26 pm

    I'm 14 years old and i can hear all of the tones easily. None of them hurt my hearing. It's good to be a kid :)

  • Jeremy September 4, 2006, 6:27 pm

    Well, I'm 25 and I can hear all the way up to 19k (a little bit higher actually, but it makes me want to shoot myself in the head. Some of the kids I teach have this ringer and they aren't usually too happy when it rings.

  • heather September 6, 2006, 3:47 pm

    I'm 29 and can hear all the tones, my husband is 28 and he always askes me to repeat myself and I told him that I was going to get him a hearing aid if I had to repeat myself one more time but since he can hear all the tones I guess it was just selective hearing!

  • Sam September 6, 2006, 8:17 pm

    I'll be 20 in three months, and being a person who runs sound for bands and stuff(which means loads of loud music and screeching feedback) for over a year now, I kinda thought my hearing was going out. I heard every one of those wav samples, though. The tones sounded very thin, but very intense & extremely annoying. It sounds just like feedback to me, and i felt nauseated with a headache. I know someone in his early 70's who's a friend of the family, and I laugh at him because he can't hear the pikepass beep on the freeway tolls.

  • drew September 8, 2006, 4:48 pm

    i did this to my parents and it made them feel old

  • Chase September 9, 2006, 5:41 am

    hey, im 17 and i was lookin for some fun in my borin classes, so i been lookin into this thing. B4, i could hear all but the last one until i put my headset on, then i herd the 18Khz :P. i felt like a dumb*** when i couldnt hear the 18Khz so i had to see if it was the speakers

  • andy September 9, 2006, 6:02 pm

    im 11 and it is soooooooooo loud hurt like a monkey stabing you with a screw driver in the butt!

  • Phillida September 10, 2006, 1:19 am

    Hi im 12 and i can so totally hear everything its like so cool but it does make my ear hurt a little but its still amazing!

  • Irene September 10, 2006, 1:41 am

    HI, I'm 15 and I can hear all of them. I listened to them all numerous times on full volume and it didn't affect me (no nausea, headache etc.). They're pretty annoying.

  • David September 12, 2006, 3:43 pm

    I coul hear all of them clearly. I am 49 years old. I don't know how?

  • Mike September 12, 2006, 10:26 pm

    I'm only 23 years old and I hear absolutely NOTHING on any of the sounds. I thought my friends were messing with me but everyone at the office is able to hear the mosquito sound and most of the sine files. Now, I'm kicking myself for all those raves in my early years.

  • sage September 13, 2006, 10:27 pm

    i'm 12 and i can hear them SOOO LOUD i got a headach after listening just once

  • sage September 13, 2006, 10:32 pm

    ~it was so funny when my phone rang in class, i had 2 teachers and the younger one started screaming at me and the older one looked at her like she was insane-lol

  • jean September 15, 2006, 5:35 am

    im 9 and i hear all of them loud and clear they hert like screwdrivers plunched up my ears but its still cool

  • Da cool dude(a.k.a)R September 15, 2006, 5:36 am

    Man I caN't hEaR aNy moRe im taKeINg YoU to CoUrT

  • Anth2020 September 16, 2006, 1:09 am

    I'm 14 and I can hear them all extremely clearly. my mum can hear them all except the 18hz, shes 39. my grandma whos 63 couldnt hear them at all. my dad whos 40 could'nt hear any of them at all either but he could hear the mosquito if he was close enough. I'll download an 18hz sound and use it on my phone.

  • Squirellgirl September 17, 2006, 2:43 pm

    I am 32 and I can hear all of them. I could barely hear the last one.

  • Alec-s September 20, 2006, 7:58 am

    Hey alec i hope you manage to read this under all the other posts.

    I opened the sample file in audacity, http://audacity.sourceforge.net .Using the plot spectrum dialog i saw that the sound is a pretty clean 15011 Hz sine wave, not the alleged 17kHz. However, the article at http://www.timesonline.co.uk/article/0,,2-2222217… says there is a 15kHz and a 17kHz version.

    That would make the difference for me because my hearing drops off at about 16kHz. I'm 20 btw.

    mp3 compression tends to remove noise (white noise and pink noise and the like) rather than put it in. most mp3 artefacts are holes in the noise that is meant to be in the sound. (correct me if i'm wrong)

    the tv my family got 2 years ago emits loud sounds above 14 kHz both when on and when off. When I play 14983Hz on NCH tone generator i feel like i'm watching tv. Another noise from the ignorably high pitched world is car brakes. they squeak within the range of 12kHz – 15kHz for some reason.

    last of all, the plus and minus button in nch tone generator go up and down at the same rate as the keys on a piano (incl. black keys). if u hav a piano or music keyboard handy u can test that. 440 Hz is an A.

  • Dean Francis September 20, 2006, 8:44 am

    I couldn't hear the 16kHz one but I could hear all the others, even the 18kHz. Is there something wrong with me?

  • John Just John September 20, 2006, 4:05 pm

    FWIW I'm 45 and can't hear any of these tones, not even a little bit.

    I downloaded the NCH tone generator and discovered I can't hear anything over 12 khz, which according to the handy chart makes me 50-59 years old.

    I blame the sound system at clubs like The Channel and Spit in Boston in the late 70's, and bands like the Sex Pistols and the NY Dolls. Wouldn't trade any of that to get my high-frequency hearing back.

  • andy griffin September 21, 2006, 7:27 am

    it scared me i pooped in my pants and teeteed in my ears and the doctor had to suck out all the pee i cant hear eny more

  • omar September 23, 2006, 12:50 pm

    it hurts my hears but i can hear all of them but my family cant hahahahahaha

  • shit head September 23, 2006, 12:51 pm

    all of u r bitches i cant hear none

  • omar September 23, 2006, 12:52 pm

    i can hear all but my family cant hahahahahahah it hurts my ears

  • Kate September 26, 2006, 10:00 am

    I'm 23 and i can hear them all except the last one. My dad can't hear any. But he is nearly 60 :)

  • Daniellle Alexander September 27, 2006, 4:54 am

    Hi Ms.Saunders,

    I am doing an experiment on the effects of sound frequencies on age. Two of my family members should not be able to hear the ring tone but the fact that it is not pure may explain why a couple adults can hear it including you. Could you write back with more information on how these frequencies behave and the effects they have.

    Your truly,

  • Jon September 27, 2006, 12:01 pm

    Yea, i can hear em all, im 20, my buddie at 21 can hear em all except the last one…

    interesting…but i will never use one of these anoying tones…

  • Tony September 27, 2006, 3:14 pm

    I am 45 & I can hear all of them although the last one is a ltttle faint. It's odd as when I was a kid, none of my family could ever hear the high pitched noise from the TV, and my younger brother used to think I was making it up until one day he tried to creep up on me but I heard him doing it by 'echo sound'.

    In the UK, there was even a brief attempt during the 1970s to use ultra sonics for shop security alarms where they actually left the emitters on during the day. When my mum mentioned to an assistant in a department store that they hurt my ears, he laughed and said that there was a guy that worked in the basement who had the same problem, and refused to go up to that floor.

    It seems odd how selective hearing is even within families.

  • Nick September 27, 2006, 6:37 pm

    I can hear them all fine.

    My parents can't hear them.

    They thought I was making it all up when my 12 year old sister came downstairs for a drink or something and kept asking "What is that noise?"

    My parents flipped their shit and said I am tricking them.

  • Marty September 27, 2006, 8:24 pm

    I'm 17 and I couldn't hear any of them, maybe it's time to get my ears checked out. Bit depressing, though I could hear a second or two of the ringtone.

  • billybob September 28, 2006, 12:51 pm

    One thing that someone mentioned above was the quality of your equipment_

    If you have off the shelf speakers that probably came with 95% of the PCs on the market over the past 10 years – then yeah – who knows what yore hearing_

    Having quality equipment is a more accurate test for starters – but also just because you can or cannot hear the audio listed on this page doesn't neccesarily mean you're deaf_ Before anyone decides to get a hearing aid – contact a doctor or hearing specialist and have your hearing checked out by experts in a controlled environment_

    Other things contributing to being able to hear these frequencies from your computer could also be random background noise – the size of the room you are sitting in – the materials surrounding you [as to whether they absorb or deflect sound or cancel it out]_

    So unless you are sitting in doctor's office or sound booth at a recording studio – don't think your ears are bad just yet_

    I'm 31 – I heard all 4 posted frequencies and also the mosquito thing_ I had a Tv going in another room loud enough to hear thru a closed door – the outside unit of an air conditioner going – the traffic drriving by out on the busy main road and various people talking_

    Also something to think about – a dog whistle is usually in the range of 16-22 kHz_

  • Jack September 28, 2006, 5:57 pm

    I'm 46, and I can hear all of them just fine.

  • Camilla September 30, 2006, 2:54 pm

    Hey, I am 22 and I heard all of them fine.

    I've always thought I was crazy, being able to hear the "static hum" from electronic screens and apparatus'.

    My greatest problem right now is that after having listened to the four examples, being in the same room as a TV that is turned on it giving me a major headache – all those pitches!!

  • Andrew October 2, 2006, 11:31 am

    I just turned 25 and have to wear earplugs at rock concerts and NYC subway due to overload in my right ear (sounds like a shorted earphone when exposed to loud noise). I have been protecting my ears over the last 15 years with these earplugs. I can hear the first three pretty well. For the last two, I have to put my ear up to my speaker to hear it.

  • Andrew October 2, 2006, 11:32 am

    typo in my post — I just turned 35, not 25! sorry!

  • maxwell October 3, 2006, 7:59 pm

    dude this is awesome my mom couldn't hear it at all,but my dad could a little GET THIS NOW.

  • Brian October 5, 2006, 7:12 pm

    I'm fifteen, and could hear all pitches sans the last one.

  • Mina October 7, 2006, 7:35 pm

    Im 18 and heard all of them even in the backroom of my house. They are SO ANNOYING! I played it for my mom and shes 50, she heard all except 17 and up. She also suffers from migraines so maybe some of the previous posters have something there… If i was still in H.S id so be getting in trouble playing these to get people mad

  • Mark October 9, 2006, 8:35 am

    I'm 44 and couldn't hear any of them. On the plus side, with my glasses on I have nearly 20-10 vision.

  • hayley October 9, 2006, 7:18 pm

    my science teacher showed me mozzy tones today in class- my teacher couldn't hear them but all the kids in class thought it was annoying. i just listened to the 17 with VERY low volume and i could hear it. my ears hurt so bad now! if you were wondering i am 12. not bad ey? i'd like to try my luck at 20 but, mabey tomarrow- my ears just can't take it right now. i wish i had a cell phone. if i did mozzy tones would be my ringtone.

    ~hayley out!

  • Hiro October 10, 2006, 5:12 am

    I'm 45. result in bellow. very strange.uuuu.

    * Mosquito —————————easy to hear
    * 15102 Hz pure sine wave———easy to hear
    * 16000 Hz pure sine wave———I can't
    * 16961 Hz pure sine wave———I can't
    * 17959 Hz pure sine wave———I can hear but not easy

  • Rose October 11, 2006, 8:55 am


  • FER October 11, 2006, 9:08 am


  • Greg October 13, 2006, 1:17 pm

    I downloaded the mosquito one and put it on my phone(the others wouldn't play for some reason)

    i can hear every one but the 17959 Hz which is really annoying because it is just outside my hearing range(i produces noise but not to the point to where i can really hear it)

    I played the mosqito one for my mom and she couldn't hear it but she got mad cause she though i was pullin a prank but my sister(14) could hear it fine

    at 15 i think this is an intersting site and that this page is truely interseting.

  • Jordan October 15, 2006, 4:58 pm

    I'm 18 and i sat here listening with my brothers, ages 7 and 10. all 3 of us could clearly hear all of the tones.
    my mother on the other hand, who is 37 suddenly had a headache after li played a tone but she could not hear it. they got very annoying to me though.

  • Anonymous October 18, 2006, 2:23 pm

    I'm 13, and I could hear them all. The mosquito ringtone what really loud to me, but the 18k one was pretty quiet. I thought that was pretty cool.

  • Matthew D October 18, 2006, 5:36 pm

    Im 15 and i can hear all the tones…i had trouble so i found out if u point ur ear towards the speaker u can hear it better…..the last 1 took awhile but i turned my speakers full blast and then i heard it perfect!!!

  • alex October 21, 2006, 12:10 am

    can we get the tones in mid file format ? : (

  • fabio caÃ&plu October 22, 2006, 6:12 am

    Hi i can hear the mosquito but i had an strange sound in my ears it hurts
    im 36

  • Chris October 24, 2006, 8:52 pm

    25 y/o male. I can hear them all but they give me a headache and give me nausea. I've listened to them twice on two seperate occasions and it happened both times. The last time I listened with my 9 year old cousin and he could hear it from quite a long distance whereas I could only hear closer to the computer. Maybe the symptoms have to do with the volume being fairly loud but the perceived volume seeming really low.

  • Lola October 25, 2006, 5:01 am

    i am 13 yrs old and can hear them all perfectly, but my friend who is the same age as me cant hear the mosquito one (someone was testing it at school) and most people could hear it) and by younger brother could hear them all but not the 17959 Hz pure sine wave one. …..

  • Mea October 28, 2006, 12:35 pm

    I'm 40, could hear all of them and they didn't hurt. This surprised me as I worked with a rock band for many years and figured I wouldn't be able to hear much.

  • Mark October 28, 2006, 7:57 pm

    I'm 45. When I retired from the military six yeras ago I was told I had some high frequency hearing loss. Yet, I heard all the ringtones including the "mosquito", even with the volume turned down. Guess I'm either young at heart or this is an awesome urban legend designed to fake out the kiddies in school.

  • Mark October 28, 2006, 7:58 pm

    I'm 45. When I retired from the military six years ago I was told I had some high frequency hearing loss. Yet, I heard all the ringtones including the "mosquito", even with the volume turned down. Guess I'm either young at heart or this is an awesome urban legend designed to fake out the kiddies in school.

  • Ariel October 29, 2006, 12:42 pm

    I remember my mom calling me into the kitchen one day so she could play the Mosquito tone for me. She and my dad couldn't hear it, but both of my brothers and I could hear it perfectly. I can hear all of them, though I have to admit they do get progressively harder to hear. The Mosquito one sounds low now that I've heard the other ones. It's interesting, I thought the Mosquito was too high at first, but now that I've heard the others it doesn't bug me as much.

  • Ariel October 29, 2006, 12:48 pm

    I just realized I didn't give my age. 16, by the way. And I apologize for the double post.

  • JT October 30, 2006, 1:34 pm

    I'm 17 and I can hear all of them, but most of my friends cannot.

  • Juukan October 30, 2006, 3:41 pm

    this is insane guys me and my sister cold here it but both of my parents couln't this is sssssoooooo kkkkooooooolll!!!!!!!!!!!!!!!

  • Chelsea November 1, 2006, 1:49 pm

    I'm 17 and I could hear all of them, but the 18 hZ was almost inaudible… almost.
    I have an awful headache now from repeating them haha.

  • Sarah November 1, 2006, 7:56 pm

    I heard everything. My ears are really sore! >.

  • Jackie November 3, 2006, 7:40 am

    Im 16 and could hear all of them. I thought I couldn't hear the 18hZ one, so I played it several times….after about 5 times of playing it I could finally hear it and my head is hurting very bad….>.

  • John November 3, 2006, 7:48 am

    very loud, my dad cant hear it though :)

  • Cocoa November 3, 2006, 3:41 pm

    We (my sister and I) could hear up to 20KHz. She's 12 and I'm 15. My 46- and 44-year old parents couldn't hear the ringtones. The former heard up to 13KHz, the latter 15KHz. We could hear up to 19 downstairs, but my parents could hear up to 12 KHz downstairs.

  • Eddie November 4, 2006, 11:22 pm

    Ha! awsome… how do i get this on my phone?

  • Alec November 5, 2006, 2:35 am

    Depends on your phone Eddie. For a lot of phones you can just download the ringtone if you have a data cable. I do it all the time with my Nokia, RIM, and Microsoft Smartphone phones.

  • Margaret November 7, 2006, 4:22 pm

    I tried out the NCH tone generator. I could hear everything up to 20,000Hz. Yay for being average? The mosquito tone is REALLY loud to me. However, my dad couldn't hear it. He claims to be able to hear the sound a TV emits when it's on though, which is a bit odd (and the mosquito is like that times 1000).

  • Melissa November 8, 2006, 9:33 pm

    I'm .., so what? I could hear them all! :)

  • Tracy November 10, 2006, 8:48 am

    I can definately hear them and I am 40 and a teacher. I can hear the phones in class if there is not a lot of noise from the AC, student movement, talking etc. I am a science teacher, so I am going to develop a lab activity for this. Other teachers in my school cannot hear these tones.

    I will say the phone speaker and computer speaker makes a huge difference in whether I can hear the sounds. We tested the sounds on several phones and computers and I could hear all with good speakers, students could hear all on any quality speaker.

    Some tones are definately more annoying than others.

  • REBEKAH JOHNSON November 10, 2006, 9:02 am


  • REBEKAH JOHNSON November 10, 2006, 9:04 am

    PS IM 15

  • Aaron November 10, 2006, 9:04 am

    Well im 14 years old and I can hear all the tones just fine and all my life I have kept my music loud whether in my ear buds or stereo speakers Just thought I share that what I just dont understand is why we are buying these tones when vibrate works just as good heck thats what I use in class and I can feel when I have a txt or call coming in well anyways keep up the good work! (:
    Its no suprise that a 9 year old has a phone my neighbor's son's have phones and one is like around 9 years old and his brother is like 5 no joke maybe it because there dad works for Cingular

  • Heather November 12, 2006, 2:55 am

    I'm 19, could hear all except the last one. My head feels weird now though…

  • Tara November 12, 2006, 8:38 pm

    I could hear the 16Hz faintly on my crappy laptop speakers, and the 15 and the mosquito one were quite loud and irritating. I'm about to turn 30. The 18Hz one sure agitates my cats though. I played it and one cat, which was sound asleep, freaked out. The other one came running from the other room and paces whenever I play it.

  • ally November 13, 2006, 12:23 pm

    I'm a 46 year old teacher and I can't hear any of them – I think working with crowds of children on a daily basis (playground and corridor decibels) pretty well wipes out your hearing..

  • Robert November 14, 2006, 7:41 pm

    I am 45. I can hear all but the 16000. May be my laptop speaker limitations at that certain freq.

  • Eddie November 15, 2006, 10:26 am

    I can hear all of them – and working in a room where there's a lot of fan noise from computers, it's usually harder to distinquish sounds: these come through loud and clear to me. None seem painful though somewhat annoying, and I do notice a tapering of my ability to hear each of them as it goes up. Like some others here, I hear television tubes and flourescent lights and such.

    Slightly related: I can also see slightly into the infra-red and ultra-violet spectrums as well – an odd test I was given almost 20 years ago brought that to light. If you'll pardon the pun…

    I'm 37.

  • Sarah November 15, 2006, 3:05 pm

    I am 16 and I couldn't hear any of them. I know it isn't just me who can't hear it at my age… it is basically anyone with a high frequency hearing loss. It would be nice if someone would upload a very low frequency one. Though my dad is 40- something and he heard it perfectly well…

  • Kiwi November 15, 2006, 6:50 pm

    I can hear all of them and im 14 it was not hard at all.
    But i thought ringtones were like suppose to have
    some type of you know tune to it, i do not know if
    i like it yet i will have to test it on my mom before
    a make any descions.

  • sato@japan November 19, 2006, 5:26 am

    I'm 22 and I coundn't hear 16961Hz and 17959Hz.
    but i heard w/ a verrrrrrrry noisy computer.

    I will try again tomorrow with a sister's notebook computer.

  • Casey November 20, 2006, 12:50 pm

    I could hear the mosquito ring, and im 12. I thought that I was the only one that could hear it. I asked my mom to try and she said "there is nothing playing." Until i showed her the bar was moving. THen after playing it twice she said her ears started to hurt. So then I asked my baby brohers one who is 4 the other 10. They both said that they both could hear a "buzzing bee" sound. So, of course I played it twice to see what would happen, and my brothers said with joy "play it again!" As you tell, we were all excited to be able to hear it!

  • Casey November 20, 2006, 1:20 pm

    It's me again! i played each of the samples. I played them at least 10 times each. I could hear them all. So i tried on my family… this is what happened. MOM–(on all) i can't hear a thing stop playing tricks! brother(age 10)– (on 3 out of four) shut it off shut it off it hurts.. -cries- on last one ok is doesnt hurt (sencond time i play it) Stop it shut it off! -shuts off my computer- baby brother(age 4) (on all) casey, my ears are ringing!!! -smacks computer screen- AS YOU CAN SEE DO NOT PLAY MORE THEN 5 TIMES! MAY CAUSE THROWING UP, HEAD ACHE, AND "RINGING OF EARS."

  • BOB November 20, 2006, 7:28 pm

    im 13 and I can hear every one but the last one i cn kida hear but its hard

  • КÐ&f November 22, 2006, 8:18 am

    I can't really hear the last one, but i hear the "click" when it turns on. It may be my speakers. All the rest I can hear very clearly and they don't really hurt my ears either…

  • mark November 22, 2006, 3:13 pm

    I am 32 years old and can not hear any of the tones… Noooo I am getting old!!!

  • Nate November 28, 2006, 1:28 pm

    This is awsome my teachers cant hear it when someone calls me.

  • She Who Must Not Be November 29, 2006, 1:52 am


    I'm 27 and I can hear all but the 16961 Hz & 17959 Hz in my admittedly noisy lounge room on a windy night. No wonder it bloody drives people away, it's worse than that noise the TV makes.

    I have a headache now. :(

  • Sue G November 29, 2006, 12:05 pm

    I'm 36 and I can hear them all, but then I can tell if people have their TV's on when I walk past their houses because of the high pitched whine they make. I use to be more sensitive to things like that when i was a kid, a street away, I told my mum that she'd left the radio on when she picked me up from infant school – she was a technophobe even in the 70's and habitually unplugged everything before she left the house, and unplugged the TV ariel at night…. but she had left the radio on when we got home that day. I always said I could hear the electricity. I'm glad I can hear these sounds, in some small way I feel triumphant.

  • Alex November 30, 2006, 1:01 pm

    I just turned 55 and still play in a rock band – can hear all including the mosquito but not as easily as my 16 year old son. Thank goodness for in-ears protection on stage.

  • Ben December 2, 2006, 6:15 am

    I'm 19 and can hear all of them with no problem. Me and some of my friends went to a restaruant and asked some of the adults (older people) there if they could hear the misquto and only one guy over 25 could here it, my opinion is even if the teachers can hear it they are not going to nessecerily think twice about it being in a classroom that most likely has fourlecent lights, and computers both runing at once, not to mention the normal noise level of a classroom, oh and if its in the middle of a lecture there probaly not gunna hear it. So unless there listening for it or the classroom dead silent, no chance. Its not a question if they can reconise the sound but weather not they can while there is other noise around

  • ginnie December 6, 2006, 12:16 pm

    so cool. I could hear from a long distance away. Man , i wish they had that 50 years ago.

  • j-man December 6, 2006, 12:56 pm

    im 14 i can hear all of em i just had to find he right volume on my stupid speakers

  • A. H. December 7, 2006, 2:05 pm

    16 and can just barely hear the mosquito. D:
    Somethin wrong with me?

  • a December 7, 2006, 5:00 pm

    16. I can hear them all and they are awful. My ears hurt a lot now. I hear the televisions too, but that's not actually painful. If people want to use the mosquito ringtone, whatever floats your boat, but I am wholly against the mosquito "teenager repellant." Causing pain to a specific age group is discrimination, at the very least. I was actually pretty surprised that I could hear them all so well, since I attend very many loud concerts. My 13-year-old sister can only hear the mosquito, but she has pretty much ruined her hearing with very loud heavy metal in headphones and at shows. Oh and my 59-year-old father can't hear any of them, which could be presumed, but I thought I'd throw it in there. In an attempt to salvage the human rights of young people, please do not buy the mosquito teenager repellant, or any other products from Compound Security.
    …I still have a headache.

  • zachary December 12, 2006, 12:43 pm

    DUDE im 16 and i cant hear that…

  • Brian December 14, 2006, 9:28 am

    I can hear all of them. I am 16 and this is really cool. My sister (age 14) can't stand it so it's a plus haha. I set it to my ringer and she will yell at me to pick up my phone. Using it in school also works for the most part except in some classes with the youger teachers. I went and tested all the teachers today to see which classes I can get away with.

  • juliacapes December 18, 2006, 1:38 pm

    im 13 and i was able to hear them all except the last one. i feel so old.

  • Duckie64209 December 19, 2006, 5:35 am

    I am 21 years old and all of the tones were VERY audible to me and my three year old son. HAHA I guess thoes sneaky little kids aren't going to get past me.

  • shiloh shelagh December 19, 2006, 1:14 pm

    I am only 20 and I cannot hear any of these. Kind of sad, but it was fun to play these and drive my 13, 11, and 9 year old sisters crazy. They cringed at all of them, my mom and I couldn't hear any. wow.

  • andrew December 22, 2006, 6:53 pm

    I can hear all of the sounds no problem at all. I am 17 years old

  • Scott December 22, 2006, 11:27 pm

    I'm 15 and got up to 311 million herts on the sound generator before i could no longer hear it on my headphones, though there were a few spots in between also, and my headphones might be automatically toning it down because it seemed to cycle. My head hurts now and i think the generator my not work correctly because of how high i could hearit. Although this my explain why it's so anoying for me to hear anyone sing even the tiyest fraction of a note off. does this mean i have a new-found superpower for hearing?

  • Scott December 22, 2006, 11:47 pm

    hey confimed that the tone generator dosen't work. fond anothersite at http://www.freemosquitoringtones.org/
    they list multiple levels. Ican hear 21.1khz but not 22.4khz.
    visit this site to find your true level of hearing.

  • Jeffrey December 23, 2006, 2:40 pm

    If anybody is reading all the stuff down here (doubt it), I downloaded the mosquito and played it on my psp with the new visualizer, and then created my own tone (Already had the NCH tone generator) at 18 kilohertz an it is definitly more clear.

  • Mgirl December 25, 2006, 8:41 pm

    Owie!! I'm 27 heard them all very low but the after effect is leaving my ears ringing and my head aching. I went to the website above and I could hear the 21.1 and 19.8 much more clearly than the sounds at 17.1 or so. Again owie, yeah I know real mature… Anyway, the important bit of data here… I downloaded the ringtone and played it on my Ipod for my 68 year old hard-of-hearing father, and he can hear them just fine!I'm definitely thinking it's not an age thing…

  • Roger J December 26, 2006, 11:30 am

    Couldnt hear any of them. Guess I'll have to impound my kid's cell phone…

  • Amber December 29, 2006, 2:04 pm

    I am 22 and can hear every single one and my mom can not hear any. and she is 45

  • crystal December 30, 2006, 1:02 pm

    I am 18. i could hear 16961 Hz pure sine wave, but just barely. i couldnt hear the last one at all. i do, however hear the high pitch noise everywhere i am. so maybe it is not that i couldn't hear the noise, but it was just drowned out by the noise i can already hear. it is most annoying in a silent room at night.

  • soren December 30, 2006, 1:14 pm

    im 18 and can hear the 16 really loud, but not any higher. i would think it was my speakers, but my 7 year old sister can hear them all fine. i guess i must be deaf, which is odd, seeing as i hate to listen to loud music, and never really have.

  • KraigR January 1, 2007, 7:27 am

    Im 16 and can hear all of these, im on a older dell laptop and had to play the lest one twice. I can also hear noises from tvs, computers, cell phones (yes, i know when my cellys gonna ring before it does sometimes), and especially projectors…they are very high pitched and annoying…instant migrane.

  • TONY January 6, 2007, 12:16 pm

    IAM 12 And i cant here it

  • Corey January 8, 2007, 8:51 pm

    i am 15 and i can hear them all as well as about any other electrical appliance thats on….. and a buzzing that never seems to go away which also seems to have made me kinda immune to the sounds because they dont bother me at all

  • Brandon January 10, 2007, 11:06 am

    27, and I can't hear any of it! :)

  • mckenzie January 11, 2007, 5:25 am

    Make sure your sound is not too loud…The louder your sound is turned up, the "thicker" the radio wave will appear. It makes it much more audible.

  • Sanky January 12, 2007, 4:44 am

    Yay, I'am 12 and I hear all of them =P

  • Jeff January 12, 2007, 5:43 am

    I believe what one believes they can hear is greatly influenced by the speakers or audio playback device they are using (and differs between the two websites referenced):

    Using the cheap labtec speakers that came with my computer, I could hear up to 16khz on this website and every tone through 22.4khz on the http://www.freemosquitoringtones.org/ website. Thus the two websites were materially different in sound reproduction given approximately the same tone.

    Switching to Genelec 2029 active recording monitor speakers with an external DAC played through a RME sound card and RME sound software on my computer (equivilant to what professionals use to mix songs in a recording studio) I could hear an additional 1khz on this website to 17khz and could hear only up to 16.7khz on the other website (actually the 17.7khz was barely audiable). This also represents the two websites appearing to have identical tones as the limit to what I could hear was comparable on both sites, whithin the different steps of khz's of the tones on the two respective websites, as the max tone I could hear was >17khz but

  • Dorothy January 13, 2007, 7:25 pm

    Haha I can hear all of them! I don't have a cellphone though. :-(

  • Mr. Sangiorgi January 15, 2007, 5:19 am

    I am 39 years old and a high school chemistry teacher in NYC. I heard all the tones clearly, with the 18K one being a bit fainter than the others (possibly due to speaker range as stated repeatedly above). The mosquito tone is very dirty – I heard that one best of all. I wonder if any of my students are reading this! hee hee.

    This all amazes me because I have always considered myself a little hard of hearing – I often ask people, including students in my classroom, to speak up in a conversation so I can hear them (although I can always tell if someone is whispering away…). I attribute this to repeatedly abusing my ear drums at rock concerts. I was the idiot that stood next to the speakers at a Manowar concert when they were in the Guiness Book of World Records for being the loudest band in the world. My ears rang so loud that night that I could not sleep. I have seen over 100 concerts ranging from the Cars to Slayer.

    I agree with those above that it may be a genetic thing. There is a chemical test strip that some biology teachers use for students to determine if they have a certain genetic mutation (I think its called TCP or TPC paper – remember, I'm a chemist, not a biologist!). A certain percentage of the population can easily taste it (it's supposed to taste very bitter) and others can not taste it at all. It appears age does have something to do with it but there are too many "older" people who can hear the tone. And yes, I hate the T.V. on standby sound!

  • fred January 16, 2007, 5:08 pm

    i could hear them all and i am 15 hehe

  • Wyonna January 16, 2007, 6:23 pm

    Hey, I thought that was cool I could hear all of them, I am 16 tho :), I went around the house to get the adults and kids to see it they could hear them, only my 13 year old cusin Sara and I could hear them all :D.

  • Iain January 22, 2007, 4:18 am

    16 and can hear all but the last one

  • Logan January 25, 2007, 1:28 pm

    i can hear every single one as clear as crystal but the mosqito one sounds weaker

  • Logan January 25, 2007, 1:37 pm

    I also think that the people who cant hear, cant hear it because their malleus incus and stapes are to large to vibrate that fast and since the ears and the nose never stop growing the more elderly you are the greater chance of not hearing it.

    im 16 so i can hear it really well

  • Chas January 26, 2007, 1:27 pm

    I Heard all of the ringtones, downloaded the tone generater and heared all the way up to 13316085163.75 Hz. Oh, and i am 15.

  • Rob January 28, 2007, 9:24 am

    i heard it, im 16 while my 12 and 6 year old cousins couldn't here the highest one

  • Caroline January 31, 2007, 2:33 pm

    Im 14 and I can hear it up to 19.9khz. My head hurts ow. You guys should also try the messengers website and go to supernatural sense experience. They have from 8khz to 22.4.

  • Rafael February 4, 2007, 6:34 am

    Didn't hear the last two, then I tried an experiment that made me hear them all!

    Logically speaking, it didn't make sense for me to hear the mosquito, the 1500, 1600 and the 1699 clearly and suddenly go deaf on the last two. What did I do? I plugged in my beautiful Bose Quiet Confort speakers in my computer and played the waves again. OUCH! I could not only hear them loud and clear, but they were annoying too!

    I guess at 25 I'm still alright! Maybe it's your computer speaker that's keeping you from hearing the higher frequency ones too!

  • alan February 4, 2007, 2:30 pm

    "I guess at 25 I’m still alright! Maybe it’s your computer speaker that’s keeping you from hearing the higher frequency ones too!"

    ur partially right, but i have one of the best headphones out there, still cant hear the last one. by the way i am 17 and can hear all except the last one.

  • candace February 11, 2007, 3:55 pm

    im 17 and could hear all of them. and now my ears hurt like crazyy!!!

  • Mark February 16, 2007, 7:54 pm

    I am 47 and heard them all. I wear earplugs at work, obviously they have protected my hearing over the years.

  • Aidan Whitmore February 18, 2007, 5:58 pm

    I'm 19, and heard all of them easily. This surprises me as I have tinnitus quite noticeably. My tinnitus sounds at a higher pitch than any of the sound samples; I can only hope this means it'll fade a bit as I age!
    As a side note, on the highest pitch I heard two pitches: the high note and a note noticeably lower. I have no idea if this is an aural illusion induced by my tinnitus or not.

  • Casey February 22, 2007, 6:02 pm

    I'm 26. I found that I could hear the first 2 easily, 17kHz was difficult, and I couldn't hear 18kHz (on just a small speaker built into the Mac Mini). But then I came in to work where I have better speakers, and could hear the 17kHz pretty easily, but not the 18kHz one.

    So then I was listening to the 17kHz one a bunch and fiddling with the volume and then tried the 18kHz one again doing the same and after a while, my ears became a lot more sensitive to the 17kHz one which sounds really annoying now, and I can hear the 18kHz one too now, though not as well. So maybe it's just a matter of what you're used to?

  • joey February 24, 2007, 5:16 am

    All the people who are like well I'm 25.. I'm 24.. you're supposed to be able to hear them. It's people that are over 30 that are going to have troubles due to aging and if they've been exposed to loud sounds/music or whatever. Just thought I'd let you all know… By the way, I heard all of them and I'm 16.

  • eg February 24, 2007, 11:57 am

    I am 41 and cant hear any of these sounds. My kids were laughing at me.

  • jbpsonicman February 24, 2007, 4:22 pm

    Most (if not all) computer speakers are not able to reproduce tones above 16,000Hz in a sufficient amount for this type of unofficial testing. In order to perform a test like this properly, you must be sure that the equipment that you are using (amplifiers and speakers, etc.) is capable of reproducing the frequency range you desire to test… Just a suggestion… I am 38 and can hear them all… Rock on, Mosquito!!!

  • 1982Girl February 24, 2007, 9:20 pm

    Okay Im 25 and can hear them all BUT when I first tried to hear one I was on my Laptop and for some reason on my laptop I cant hear ANY of them but on my desk top I can hear them all clearly… Must have to do with the speakers or something.

  • Rey February 25, 2007, 11:12 am

    OW! my ears hurt now. X.x

  • Rey February 25, 2007, 11:13 am

    i dunno why i wasted my time listening to them. Im 13! Of course i can hear them. Still pretty cool though. Im choosing this tone for my science project.

  • Nabeel K February 26, 2007, 6:09 pm

    At 23 I can't hear the last two! What sadness! I love music and I hate this, just hate this.

    >> I am not a kid anymore!

  • joey February 27, 2007, 4:50 pm

    Haha. Some of my friends were playing the tones in class and the teacher couldn't hear any of them. All the other kids could though; it was soo funny! One of my friends yelled stop reallllyy loud and the teacher had no idea what was going on. We were laughing so hard!

  • Jasonik February 28, 2007, 4:23 pm

    This explains why sine wave synths on hit tracks like Ciara's "Goodies" or other Jazze Pha productions are so popular with the kids, because adults can't hear it.

    For me at 27, I could hear it, but couldn't tell if it was my tinnitus increasing in intensity from all the shows and music i've been to/listened to. Its like mosquitoes are constantly attacking me. With Jazze Pha producing.

  • eri March 3, 2007, 2:17 pm

    I'm 27 years old. I came here yesterday and I couldn't hear with 16961 Hz and 17959 Hz. but now today, I tried them again and can hear all of them easily and so noisy, it 's a surprise, but I'm happy.

  • Mitchell March 7, 2007, 5:30 pm

    I am 13, and I can hear all of them easily, but they do hurt my ears. Lots of kids at my school have them, and they get txt messages during class without the teachers noticing. One time, we played it during the whole class period, and it really gave us a headache, but the teachers never found out!

  • shavenyak March 8, 2007, 10:47 am

    I can hear all but the 17k and 18k tones. I need to try this at home on the stereo though – I'm not sure these laptop speakers can produce those high tones. Strange thing is, I'm 36 and have played in loud rock bands for much of my life. I would have thought I'd be hard-pressed to hear any of them.

    If these sounds are going off in classrooms all the time, I guess I now have a reason to be glad that we didn't have modern technology when I was a kid. I probably would have been the narc that let the teachers know, because those sounds have given me a horrid headache, and I can only guess it would have been worse when I was younger.

  • yoyo March 8, 2007, 9:59 pm

    I am 26 years old and i can hear all of them. Sometimes i wonder what is the advantage of the ability hearing those sounds…

  • ivy March 9, 2007, 12:33 am

    hey…you all wanna know something?? all the reports didnt tally. so there's something wrong. i can hear all of them using a laptop….

  • Freddy Gh March 11, 2007, 11:36 pm

    Hey, for all of you, not able to hear all the sounds, in spite of expecting this, because of young age, there is an possibility to be regarding low performance of speakers. Some of them are not reproducing sounds with frecuencies above 10 or 12 khz, so you have nothing to hear. Try the test on better speakers or head phones.

  • Bujie March 12, 2007, 6:13 am

    Begining with 17000Hz, my dad didn't hear the sound. The 16000 just the punch in the begining of the wave and the background of the record. Personally, I had a little trouble with 18000. It is too much for me. but is audible to my fine ear :))

  • Maricella March 12, 2007, 9:14 pm

    I'm 21. I could only hear the first two. I try to avoid playing music really loudly (which is something I constantly do, though not with headphones much) but I get irritated when I can't hear what is playing, so I turn the volume up. I guess it's a chain reaction. Well, it's all downhill from here. At the rate I'm going, I'll be stone deaf by the time I'm 40. :)

  • Robert J March 14, 2007, 11:45 pm

    Hearing that the mosquito is used to scare kids away from adult-oriented businesses was entertaining, and hearing that students were using it as a stealthy ringtone in schools downright tickled me. I tried the sounds expecting to hear your own version of the 17 Khz, but was not tickled at all to find I could barely hear the 16 Khz sound file.

    I'm only 20 years old too! That's what I get for working on a flightline I guess. I know to be much more careful with my hearing now that I see this article. I didn't think that my hearing was at such risk, thanks for making the danger loud and clear.

  • Zac March 15, 2007, 5:49 pm

    Im 17, i can hear all of them. I can also make these noises with little to no effort.

  • Jerry Whiting March 16, 2007, 6:51 am

    You can also listen to and download the Mosquito Ringtone on my web site: http://www.JetCityOrange.com/MosquitoRingtone.html

    FYI: I'm 53 and can't hear it.

  • Taylor March 16, 2007, 6:45 pm

    I am 22 and I can hear them all!!!! :)

  • Alli March 17, 2007, 7:54 pm

    I'm 15, and can clearly hear all of them. Which, might I add, has given me an annoying headache sitting in the front of my head. Also, my head seems to have started swaying back and forth like I'm listening to jazz. I called my boyfriend in to listen to it, and he started screeching like a ninny when I played the 18 Khz file. He's none too happy with me right now. Also, what frequency would a dog whistle be at, because I can hear those too. I love this. Keep up the good work Alec, and post some more neat things.

  • 15 March 22, 2007, 12:16 am

    i'm 15 too, and i got a bit of a headache after 5mins of listening to that ringing…man thats one annoying buzz

  • Jeanne March 22, 2007, 5:19 am

    I am 50 and a teacher. The tones give me a terrible headache. They also cause nausea. It feels like pressure on my ears. Other teachers have told me the same thing.

  • Kim March 22, 2007, 2:49 pm

    Yea! I can hear all of them and I'm 39. I thought the Mosquito was the loudest and clearest for me. The 18 was audible, but if it was as soft as it was on my computer, I probably wouldn't hear it unless there was no noise in the room. I'm going to have my sister listen to these because she's a teacher.

  • Liv March 25, 2007, 10:04 am

    I'm 14 and can't hear passed the 1600 one! Is something wrong with me? Occasionally I listen to loud music, but not so often… Why am I so deaf?

  • Maria April 1, 2007, 3:20 pm

    I'm 16 years old and i can hear everything, but the last one only makes my head hurt, i can't really hear it as much.

  • tania April 3, 2007, 7:26 am

    sad….i'm 12 going on 13 on 2007 but i could not hear the last one……it's saddening, is it not ?!?!?!?!?!?

  • stranger April 3, 2007, 8:07 am

    I'm thirteen and the last one was hardly audible.
    I sit in the front seat with blaring speakers at my dad's conventions for his business or whatever, I regret doing so :(

  • stranger April 3, 2007, 8:10 am

    According to this ringtone website: http://www.freemosquitoringtones.org/
    I can hear up to 21Khz

  • Sailor Enlil April 5, 2007, 5:23 am

    Using a Hi-Fi stereo for testing, the Mosquito Ringtone was loud and clear to me, while the 15kHz and 16kHz sine waves were somewhat audiable; 17kHz and up were inaudiable to me.

  • moriah April 12, 2007, 5:47 pm

    i could hear all of them and the last one hurts!! i might as well jam a spork in my eardrum!!

  • anouk April 12, 2007, 7:44 pm

    19 years old and could hear all of them, but the last one made my teeth hurt. Really annoying sensation. If someone used that as a ringtone around me, god help them.

  • Tom April 16, 2007, 6:29 am

    Ouch, that DID make my ears hurt!

    I'm 20, and I could hear them all (just). The 17959kHz one needed me to put my ear right up to the speaker on full volume (stupid me, no wonder my ear feels like it's bleeding), but i could JUST make out the tone.

  • erika April 17, 2007, 8:18 am

    i heard the first three but not the last one, but i can hear the one on the KFC commercial, so go to the website and see if you can locate where the sound is in the commercial. and then try to catch it on tv and see if their is a difference.

  • OCR April 21, 2007, 4:38 pm

    I am 32 years old, and I can hear all of them quite clearly. I have been a DJ for 17 years, have worked with race cars, and have been a musician. I am an Aviation Structural Mechanic in the United States Navy. I am exposed to extremely loud jet noise as well as firearms and loud machinery. Why can I hear them all? Easy! I have taken steps to protect my hearing for the past 20 years. I learned at a young age that my ears were sensitive to loud noises. I wear earplugs while DJing, or going to a night club. People should realize that your hearing needs to be protected. Once you lose it you can't get it back.

  • sonic man April 24, 2007, 3:57 pm


  • Jeremy April 24, 2007, 7:37 pm

    I can here all of them just fine, I'm 27. the last one hurt a little.

  • joe da dough April 25, 2007, 4:03 am

    i cant hear them under 17 hz. i shoot guns alot and i think that that might have ruined my hearing.

  • Chris April 25, 2007, 1:10 pm

    I'm 15 and a half, and I can hear all of them except the last one very clearly. For the last one I had to turn my speakers up a little.

  • andrew April 27, 2007, 5:03 pm

    i dont see how that was so bad…i could hear them all but they didnt hurt

  • Mayhem April 28, 2007, 9:35 am

    I'm in my mid 30s and I could hear all of them fine. But I know I've not lost my high frequency hearing ability from other tests I've done recently and that I can detect electrical resonance in various pieces of equipment that are on whilst being outside of the room they are housed.

  • Vlad Gabov April 29, 2007, 3:57 am

    Weird. I cant hear the 16961 HZ tone yet I can hear the 17959 HZ tone crystal-clear.

  • Johny MacDavidRobinM April 29, 2007, 10:39 am

    I'm 15 years old and I could not hear any of those sounds ='(

  • cheya April 29, 2007, 11:44 am

    I can hear all of them, i am 13 going on 14 the last one was difficult to hear , and yes i thought that tv on standby was just me being crazy. Funny thing now that ive tested this on my dad he cant hear it but has a migraine and says that his mind has convinced a high pitch sound into his head even thou he cant really hear it. (my cat can hear it hehe..)

  • Hayley April 30, 2007, 2:09 pm

    I am nearly 20 years old, and I can hear every one of the tones perfectly clearly up to 19.8 kHz. They're quite irritating, actually.

    The odd thing is that my younger brother is 16, but he cannot hear 18 kHz or higher.

  • Ian May 2, 2007, 3:23 pm

    this is awesome im 15 and i could hear all of them loud and clear and my 50 year old dad couldnt eeven my dog could hear it

  • thesyndictalist May 2, 2007, 8:11 pm

    i down loaded the soft ware and when i got high enoghf my ear bleed

  • CYBRFRK May 4, 2007, 10:12 am

    I' m 40 years old and heard them all including the ring-tone. Beware children, not all that rings is hidden from view.

  • tiger_lily May 5, 2007, 6:12 am

    I'm 31 and I could hear all the sounds, but boy did my ear hurt!

  • Silque May 9, 2007, 11:08 am

    I am 34 and can hear all sounds without any problems. Very painful and uncomfortable.

  • Nobody in Partucular May 10, 2007, 3:21 am

    Im 15 an I only hear the first one :(

  • LITTLE DOG May 10, 2007, 8:42 am



  • kevin May 12, 2007, 3:21 pm

    hmm. i'm 14 and i can hear every one of them, yet i constantly blast my ipod as loud as it can go in my ears, even while i sleep. idk. maybe you all are just less advanced than I.

  • Leszek Lach May 13, 2007, 3:46 pm

    24 y old.. heard all of them loud & clearly.. the last one is not even close. i downloaded program to test my barrier.. it is around 24 khz

  • Mab May 15, 2007, 1:23 am

    I’m 52 and can hear all of them. So I am assuming if one cannot hear them at all it matters not how loud the volume is turned up? It reminds of the high pitch of electrical towers in the desert. I don’ tfind any of them particularly annoying, but I would not want to listen to them for any real length of time.

  • Towelie May 18, 2007, 10:21 am

    i'm 14 and i can hear all of them. HA! the rest of u guys r deaf!
    suck it

    ur a towel


  • Alyssa May 22, 2007, 11:16 pm

    I'm 19 and can hear them all. I couldn't hear the last one at first, but I was using just my laptops speakers; when I listened through my earbuds I could hear all of them no problem. I've only been to a couple of concerts and I don't really listen to loud music.

    And for all the 12-14 year olds that are overly proud that they can hear it: Yeah, you're awesome. Let's see you hear it in 10 years when being able to hear 17Khz ISN'T average.

  • chris June 1, 2007, 10:28 am

    im 12 and could hear them all. my 25 year old sis could hear all bu t the last one and my 50 year old mom couldnt hear any :).

  • Twitchie June 12, 2007, 7:23 am

    im in typing class in summerschool and i'm playing it the two people bside me heard the original and the lower two and i think im the only one in class who ca hear the higher 2
    im 15 and i told my dad and he played some and i heard all of them most from the other room
    and i dont have a cellphone…WTF?????

  • Willian July 1, 2007, 5:08 pm

    This really didn't work with me and my family! Me (23), my sister (18) and my mother (44) could heard the highest frequency song normally.

  • jONas July 9, 2007, 11:28 pm

    i can hear them all how did taht happen im only 19

  • Niki July 14, 2007, 6:23 am

    How sad, I am coming up on 29 and can't hear any of these accept the first Mosquito recording, that one I can hear just fine. I have a couple of medical conditions that can cause hearing loss but I haven't been taken a recent hearing test. I guess I am losing my hearing.

  • Pip July 23, 2007, 7:55 am

    I'm 36, I can hear all 5 tones and the mosquito, yay!! And now I've got ringing in my ears, grrr…
    I remember that when I was a kid, I hear the high-pitched whining the tele in the next room made when someone switched it on. (It was an old black and white TV that took a full minute to warm up.)

    Had always believed that I would have had some ear damage after my years in a military band, coz I kept asking mom and the wife to repeat what they said. So now I know that my hearing's fine – my brain's just treating their voices as background noise…better not let them see this…

    I know that people loose their ability to hear high freqeuncy sounds as they age, only regret is why I didn't think of this sooner!

  • charlie July 31, 2007, 11:59 am

    not good if you suffer from hyperacusis, maybe thats
    why young men where so receptive to shellshock during
    world war one

  • Panda August 4, 2007, 6:35 am

    I'm 19 and can hear all of those sounds clearly :>

  • Shannon August 11, 2007, 8:25 am

    My Grandma is 78 and she cannot hear these. There was one on a website I couldn't hear and I am in middle school!!

  • Andrej August 18, 2007, 2:53 am

    I am in High School and must have good hearing, I can hear all of these from the otherside of my house.

  • Granticus August 21, 2007, 7:23 pm

    >>>>>Try covering one ear to see if you have better hearing in one or the other

  • Rebecca September 3, 2007, 11:40 am

    I am 33 and could not hear any of them but was sitting in the same room with my 15 year old and she was yelling for me to stop……. She said they were giving her a headache.

  • emmanuel gomez September 4, 2007, 4:27 pm

    i was surprised when i heard it. my phone sounded during class and the teacher didnt hear it it was so cool.

  • chrissie September 27, 2007, 1:45 pm

    i'm 14. and i can hear all three except the last one. all i heard was the little click at the beginning. are my ears going? :/ hah.

  • bubba September 29, 2007, 7:34 am


  • yeah w/e September 29, 2007, 5:13 pm

    i'm 15 and i can hear them all

  • Micah October 1, 2007, 4:29 pm

    Hey the first two REALLY hurt my ears, and im 12, but my mom is 46 and she can hear all of them which i find amazing!

  • kincaid October 6, 2007, 5:46 pm

    well im 11 and i can hear all of them except the 16 kHz is hard to hear and all my friends and famliy cant hear 1 and where do i go to downlaod the 16 kHz tone genorateor onto my cell? im gonna see if my teacher can hear it ; )

  • kincaid October 6, 2007, 8:27 pm

    wtf andy " its feels like a mockey stabbing me with a srewdriver in the butt"?!?!?! that messed up its dosnot affect me at all they ARE VERYA ANNOYING!!!!

  • the MoOsE Is LoOsE October 7, 2007, 10:10 am

    im 9 i CANT hear any of them… WHAT GIVES?!?! ANY ideas i had my external speakers turned to the max and my 36 year old mom was screaming for me to stop…

  • jenny October 7, 2007, 11:59 am

    im 96 and i can hear everyone PERFECTLY i may be the oldest 1 hear but not the most incapible!

  • Robb October 12, 2007, 8:34 am

    im 38 and i can hear all my cat was freaking out and my 12 yr old was almost crying because it hurts….she thought her ears were bleeding…this can be a useful tool for me hahaha

  • Ben October 12, 2007, 4:11 pm

    Im 15 and i can hear all of them, i have to turn the volume up kindve loud to hear the last one though

  • Valerie October 13, 2007, 11:12 am

    [I'm 21] I listened to the first and last in the list because the sound is so painful I didn't want to sit through all of them. It sounds just like the TV when you turn it on but it's not on a channel– if that makes sense.

  • C.C. October 13, 2007, 12:12 pm

    Annoying sounds. I'm 40 and can hear all but the last. Unfortunately. Very unfortunately because I forgot while playing them that my parrot is in the next room and she is now ringing like a mosquito.

  • Tman October 20, 2007, 11:37 am

    I am 39 and could not hear a single one.

    Then, I had a thought. Perhaps the tiny PC speakers attached to my computer are not capable of reproducing frequencies above a certain Khz level. I attached some decent headphones to the computer and can now hear every tone.

  • Pete October 23, 2007, 1:26 pm

    I am confused. I am 13 years old and When I walked into my house today I heard that sound and collapsed, very confusing and to top it off, my father who is 55 can hear all of the sounds including the 18 H wave. he is an ex-commando in the israli Navy and has been a diver for 30 years. I heard this sound and my left ear actually began to bleed. any explanation? how they use it for ringtones is beyond me

  • Kailah S. October 28, 2007, 11:49 am

    I 'm 12 and I could hear all of them!!! I tried recording them on my phone, but even my PHONE couldn't pick up the frequency. My dad had to put the computer to his ear to here the 1st one for half a second, but he couldn't here any of the others. My four-year-old sister also had a hard time hearing them!

  • Anonymous October 28, 2007, 7:35 pm

    Some people turn up their volumes up (and I mean at really high) to be able to hear so it's kind of hard to determine at which kHz you can actually hear or stop hearing.

  • jbright November 4, 2007, 11:08 am

    I'm 37 and I heard them all, though the 18 Hz was not as clear as the others.
    My students tried pulling the "silent" ring tone trick on me and were very disappointed when I identified the exact location of the cell phone. I told them my secret was staying away from headphones. I think the author of this article is correct in his observation that the "mosquito" is not a pure tone.

  • J to the A to the K November 10, 2007, 8:30 pm

    i'm 72 years young and i could hear all of the noises so ha ha ha you stupied losers HA HA HA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :)

  • J to the A to the K November 10, 2007, 8:31 pm


  • J to the A to the K November 10, 2007, 8:31 pm

    zz top SUCKS

  • Shirley McGinnis November 13, 2007, 9:49 pm

    I am 73 and could hear each one very clearly.
    I have always had very good hearing

  • dangit!!!!! November 14, 2007, 6:37 pm

    woooow!!! thst hecka awesome!!!! i want to get that and put it on my fone!!! yeez….. lol ty 4 postin!!!

  • ahhh November 18, 2007, 6:20 pm

    i'm 16, and i can hear all of them.
    you can find ones that are higher in frequency on differnet websites,
    but it can also be your speakers, because on a website, i found 19 kHz, 22 kHz, and 24 kHz tones, and i couldnt hear those.
    so im guessing i cnat hear them, or they're my speakers.

    a lot of adults can hear it. a lot of my teachers can… lol

    and i heard, this generation of kids/teens are losing their hearing more quickly because of earphones and speakers.

  • JAKEshut up November 27, 2007, 8:07 pm

    shut up jake ur annyoying me

  • Arvid November 28, 2007, 3:30 pm

    wooooow, im 14 years old and i can only hear upto 16000 Hz :(

  • xzan November 28, 2007, 5:38 pm

    hey, im 14 and i was able to hear them with less than 1/3 volume ^_^. i hate it though because i can hear the T.V. on standby and we watch movies in class and the teacher will leave it on and it DRIVES ME INSANE!!!!!! but sadly when i ask them to turn it off they say no because they cant hear it. (but i cant hear my parents too ell) lolzw

  • wilts0 December 1, 2007, 7:21 pm

    im 14 u guys deff if u cant here them all if your like 14

  • not my name December 2, 2007, 7:26 pm

    i wonder how all these 12 and 14 yr olds found this site. go outside and play, kids.

    anywhoo, im 18 and heard them all clean as a whistle. the 18KHz one kinda hurt.

    by the way, if anyone actually read all the posts down to this one, then you know you have no life.

  • Aadil December 3, 2007, 2:10 am

    im 30 years old and i cannot hear all if them

  • CyRob December 5, 2007, 7:04 am

    As a hearing health professional I couldn't leave this alone. Before you freak out about your hearing consider this…The audibility of a sound is primarily determined by that sound's INTENSITY (loudness) not it's Frequency. As an earlier post mentioned, the intensity of the sound will be significantly influenced by the transducer (or speaker) you are listening through. Since the primary speech frequencies are 500-4000Hz most speakers roll off above 4kHz-8kHz(ie; give less volume to higher frequencies). Indeed, most telephones start rolling off above 2K. So listenting to these tones via your computer really tells you nothing about your hearing in a given frequency range.
    Hate to be a wet blanket but….seriously people…use your heads.

  • Alan December 5, 2007, 7:07 pm

    Haha, that's what you get for turning up those iPods up all the way and not being able to hear these sounds. 16 =P

  • Nina December 6, 2007, 6:28 am

    im 13 and i can hear all of them. my 17 year old brother can hear all of them too. we played them for my mom and dad (who are in their late 40s) and they couldnt hear any- not even the mosquito!

  • Danom8 December 10, 2007, 4:40 pm

    I’m 17 and can’t hear any of them lol, I feel so old! :)

  • Pookie December 14, 2007, 3:03 am

    I'm 31. I could hear the mosquito and all the pure sine waves, and I was just using my laptop's speakers. They did kind of make my head hurt, and I'm not surprised that a lot of people find them very painful. Whether it's a kid, or a business that doesn't want kids around, it's just obnoxious to inflict these ultrasounds on people.

    Anyway, kids, if you really must instant-message every single hour of the day, this isn't a great solution to the teacher problem. If you read the responses on this forum, you'll find that *many* adults hear the mozzy buzz just fine. I have three friends who teach high school and two of them can hear it – one in her late 20s, one in her 40s. The one who can't hear it is 33 – but he has a 20-year-old teaching assistant who can hear it.
    Anyway, haven't you kids ever heard of setting your phone to vibrate? When I was in high school, back in the dark ages, we had to content ourselves with passing notes!

  • andre December 19, 2007, 2:26 pm

    I can hear all of them im 42 and I have poor hearing because I have worked around aircraft since I was 18. Something tell me that it depend on many factors such as what kind of speakers you have and what sound system you are using. All this can change frequencies so even I can hear it.

  • Kyzumaki December 20, 2007, 12:29 pm

    I heard all very very clearly. I'm 15.

  • dogdoesnotcare January 5, 2008, 11:03 pm

    Mydog did not care about this at all. I am 29 and could hear all of these frequencies. I have always been able to hear the TV at my home when others could not…wuff wuff

  • Mangrandkidsloved January 10, 2008, 10:51 am

    i am 100 years old and my oldest grandson came over the other day, he was texting his friends and when they would text back it was this god awful ring in my ear. I asked what it was and asked him if he had heard it. Well, yes i do grandma, but can you he asked me. Yes i can i said to Keith. and he laughed and said but you are way to old to hear it. on the website it said that people over 50 can;t hear it. Well i am here to tell you that i am a healthy outgoing athletic tennis playing 100 year old who does'nt stop moving and i can hear it just fine. Thank you. and keith, you have a long way to go you 20 year old meanie. i'm just kidding i love you Keith.

  • braeden January 16, 2008, 3:42 pm

    Hi,im 12 years old and i put the ringer to the test i got my friend to call me in class and my teacher heard it shes 47!guess i got to get a higher note hahah

  • Junko January 19, 2008, 3:58 am

    i am 33 years old and I can all of them clear. It was surprising that the last one was so noisy, unpleasant like with tinnitus. I will never use it.

  • julia January 20, 2008, 4:14 pm

    wazzzzup! i love em' all. im 11 and the nosie rocks!!

  • lacey January 23, 2008, 1:55 pm

    i am 16 and i cant hear the last 4

  • jake January 27, 2008, 12:25 pm

    im 12 and i could only hear the mosquito one noneof the kzs

  • The cranky old lady January 28, 2008, 7:52 pm

    I'm 44 and could only hear the mosquito. It's extremely obnoxious and hurts my ears. I could not hear the other ones. In reality though, is there any reason we should be worried about a loss of hearing at this Hz? This is pretty much one of the only applications for this high of sound to be used–or at least one of the only mainstream uses (unless music is using this frequently). And, given all the comments about it being painful to listen to, shouldn't we avoid this if we can?

  • Alec Fulwyler January 29, 2008, 5:04 pm

    I am 15

    This is great!!! I heared all of the sounds but the last one.

    This is a great discovery if you ask me.

    Im going to download a ringtone in 16000 Hz pure sine wave so i can text in class!!!

  • Stefan January 30, 2008, 5:33 pm

    I first got the ringtone from my teenaged cousins and enjoyed plaguing them with the sounds. I then went on to do a science fair project on it. I am 13 and I can hear all of the ringtones with ease. I can hear the high pitched T.V. whine even when the volume is high. However, the sounds do not bother me.

  • Solae February 1, 2008, 1:25 pm

    My friend is 12, and she can't hear the last one! But she can hear all of the other ones. We were in school and we played it in the computer lab, and we were all laughing, but the teachers has no idea why! It was so funny. What is all the talk about the T.V.? I have never heard any sound on my T.V…..

  • Solae February 1, 2008, 1:30 pm

    wow wait… someone is nine and has a phone? i got mine in 6th grade, which is still early….but seriously…nine? Well i guess thats better then having my friends brother who is 10 having a mac computer.

  • Andy February 4, 2008, 5:01 pm

    I am 12 and I could hear all of them except the 2nd one it wouldnt work on my computer. I couldnt hear the last one at all the I turned my sound on as hi as I could and could just barley hear it!

  • Andy February 4, 2008, 5:02 pm

    My sis has a mac computer she got it when she was 17 I am sooo jealous! I got my phone in the 6th grade too

  • Ana February 5, 2008, 11:38 pm

    im 14 and i heard all of them clearly.

  • Theresa February 6, 2008, 3:01 pm

    i actually first heard about this in my media class and did not believe it at alll. i'm 16 and i heard all of them, both of my parents however did not they are 46 and 44.

  • clayton February 7, 2008, 8:05 pm

    I'm 14 and I can hear them all.

  • Anna K. February 7, 2008, 10:36 pm

    I am 43 years old and I could here them all just fine. But I've always had very sensitive hearing in the upper registers and as a child found it quite irritating at times. I'm happy to "hear" that my ears are still sensitive.

  • Ray Z February 8, 2008, 10:35 pm

    Anna K … I am like you but 30 years old. I heard all the tones and my ears are still ringing. Ever since I was a child doctors have always said I had very sensitive hearing. I have always found very high pitches/tones extremely irritating.

  • Caroline February 12, 2008, 6:32 am

    30 years old and I can also hear them all – I tried that software too, and can hear up to 20Khz – my ears hurt now!

  • EJ February 12, 2008, 10:47 am

    I'm 38 and I could hear them all fine. My ears are ringing now though. I've always had really good hearing and I play guitar in a band with loud drums and amps. (I wear musicians earplugs). If you are familiar with the band Sublime… their huge hit single "what I got" on their self titled album has a very high pitched (feedback?) tone playing through most of the song. None of my friends can hear it, but I can. They think I'm crazy. Knowing Sublime as being the ultimate stoners they are, I bet they had the engineer put that super high pitched sound in there just to mess with dogs and people like me. ha!

  • Alice February 12, 2008, 3:09 pm

    I'm sixteen and could only hear the first two – although the sound on this monitor isn't that great. On the other hand, I've had both my ear drums perforated and so perhaps that explains their lack of sensitivity. The ones I could hear weren't that bad though – my television makes that sort of noise, and I sit and listen to THAT voluntarily! xD

    To be honest, I think we're so used to ignoring these noises (and indeed after 20 minutes, I believe, we blank them entirely, rather like we start to blank smells once we have become accustomed to them) that even if you can hear it very strongly (which I presumably can't) it's not exactly going to do much.

  • DeanO February 12, 2008, 3:22 pm

    At 55 I can hear all tones but I spent years working in science with signal amplifiers which oscillated at 20K Hz plus – they don't annoy me but I can hear them even at low volumes. As an IT professional I would often hear the equipment generating noises others could not hear!
    Strange that me ears are so sensitive 'cos I'm also a semi-professional drummer and have been since my late teens. If anything would depress hearing, surely beating the daylights out of drums would have to do it?

  • JB February 13, 2008, 3:24 pm

    Some of you folks may NOT actually be deaf in those upper registers!

    You have to realize that a lot of computer speakers are not "HIFI" (High Fidelity) quality. therefor some being unable to produce the frequencies into the upper range.

    For instance, on a "Better Fidelity" speaker system, you would only be able to hear freqs. between 800Hz to 12,000Hz (you won't hear the mosquito ringtone no matter how good you're ears are!).

    With a "HIFI" set, you could hear the mosquito ring tone, provided that the high freq. ciclia (SP?) in you ears are still functioning (still alive) — there aremany other variables that causes deafness too.

    I once thought that I was unable to hear the 17kHz to 18kHz range, but later found out that it was the poor speakers that couldn't produce the actual sound freq. With different speakers, I can hear all of the listed freqs on this page.

    So if you can't hear those high sounds, don't sell yourself too short yet. Try playing the sounds through HIFI speakers (20Hz – 20kHz capability system).

  • Kristina Haines February 16, 2008, 8:14 pm

    Im 17 and i heard all of the tones perfectly but i do have a headache now lol

  • Kristina Haines February 17, 2008, 8:28 am

    My mom is 48 and she heard all tones somewhat. Funny thing was she was a frequent visitor to many concerts…… Guns N' Roses lol

  • Kaylin February 23, 2008, 9:57 pm

    Hey im 14 yrs old and i heard all of them perfectly across the room! I play it all the time on my phone at school. it is funny cuz none of my teachers can hear it. when i tell them they dont believe me. they say " I dont hear a thing so you must be ling." haha. my mom and dad cant hear them at all tho lol.

  • Richard O February 25, 2008, 12:56 pm

    im 12 and i can hear all of them!

  • Leen February 27, 2008, 4:41 am

    Well I'm almost 25 and I can't hear those last two. On tv I never hear the ringtone either, but my brother (28) can. I do play live music on a regular basis, and I visit rock festivals. Perhaps I've damaged my hearing?

  • Rich February 29, 2008, 12:18 pm

    I'm 28, I can hear the mosquito and the first two sine waves, but only in my left ear. Hopefully that is temporary and do the ear infection in my right ear.

  • alex February 29, 2008, 7:02 pm

    this is friggin tight
    i love this ringtone so much
    im 14 and i piss evryone off with it
    hells yeah

  • Septimus Nightfire March 1, 2008, 2:36 am

    Hi, i am 15 years old and i can hear all of these tones with overly unneeded clearness. All my life i have been able to hear things no one else around me can, such as Ctr Tv's in idle mode, Computers, and electrical transformers have always driven me insane. also i pick up on normal sound with strange clarity, such as a shoe scuffing on a floor quietly, or a lizard crawling on my roof, i do not know entirely why this is, but i am throughly researching my strange hearing abilities. Anyway, just wanted to drop a post! Have fun everybody!

    PS: don't use the ringers as an annoyance in class it makes teachers really mad, and i have actually had my I-pod TAKEN for an entire school day because they thought it was making that "noise" all the kids were complaining about! Just a helpful hint!

  • tony March 3, 2008, 4:33 pm

    24-year old high school teacher here. I caught one of my students (Junior) with this mosquito ringtone at the beginning of the school year. It was late in the day and he had grown accustomed to none of the teachers being able to hear it and then becoming confused when the entire class started to laugh in unison. It took me a while to realize it, but I figured out what was going on pretty quickly. I'm not sure my students realize I'm only 7-8 years older then they are … I'm not a fossil. Yet. Suffice to say my students turn their ringers off now when they enter my class. No matter what the frequency.

  • Clema March 4, 2008, 1:59 am

    I can hear all the tones and I'm 55.

    I have always had great hearing, tho, which is a deteriment in today's really noisy world.

    The Mosquito IS very annoying.

  • Clema March 4, 2008, 2:13 am

    Hmm. Went to the other site mentioned in a post above.

    I can hear em all but the 22, 2l, 20, 19 and l0 and l2.

    Makes no sense cuz 22 you would think I could hear and the lower numbers I should not hear…. being 55!

    Not sure what this means.

  • Judy March 6, 2008, 3:45 pm

    I'm 14 and in a school filled with other kids who use their cellphones to abuse this noise. Imagining sitting in a class that lasts around an hour and 10 minutes and listening to this high pitched whine almost every second. I swear this noise should be banned…

  • Anne Haight March 6, 2008, 7:35 pm

    I can hear all of the tones, although the last one is just barely in range for me. I'm 37 years old, and actually had my hearing tested recently. The tech said "You can hear bats". So I guess I'm atypical. My father and I are both people who can "hear" when a TV or a monitor is on nearby — and he's 70 now!

  • Michael March 8, 2008, 11:45 pm

    I can hear all the tones as well and I'm 25. The last one is just barely audible for me, but the mosquito is really a strong sound. I (like anne above) can also hear bats in walls, but everyone else thinks I'm nuts, but now I know I'm not! Its good not to be crazy!

  • jennee March 8, 2008, 11:51 pm

    I'm 30 and I heard all except the 18khz one. I then called my 4 year old into the room and asked him if he could hear anything and he said yes. I asked him what it sounded like and he described a high pitched ringing/humming. Makes me feel bad for the children that live in the buildings that are using this in New York to deter teenagers from hanging around and loitering, because it's not just audible to ages 13-25.

  • David March 10, 2008, 11:08 am

    I just turned 40 and heard all tones, although the 18 khz tone was a little faint. My computer speakers were not up to the task for all of them, but my headphones played them just fine. The mosquito tone was very audible with the speakers. Like some other people here report, I can also hear bats, and get an interesting sound show in early evening at the local bridges where they roost in the summer. I honestly thought that everyone else could too! I am disturbed that some people treat youth like vermin, and choose to apply a pest-control solution. Of course some misbehave (as do some adults), but in my experience most don't really present a problem. I did try to transfer the mosquito tone to my phone for fun, but apparently my phone won't play it.

  • Annie March 11, 2008, 4:06 pm

    Wow. I'm 17 years old, and the first one was the only one I could hear.

    My friends have been telling me that the noises were really loud, because I recieved one in a message on my cellphone, and yet I couldn't hear it.

    They also said its because I liked my music loud, which is not the case. I barely even listen to music, and never loud. :/

    Hahaha, and a high frequency noise teachers cant hear? Sounds awesome. Only in a perfect world, though.

  • CodeFetch March 12, 2008, 5:09 am

    I hear all sounds, but I've got problems with 19khz.
    I have to concentrate to hear it, but I can: http://9.dtiblog.com/m/maiise/file/19khz.mp3

    I'm 15 years old. My father hears everything up to 18khz and he's 42 years old.
    I think it's in the genes.

  • BryanB March 13, 2008, 9:13 am

    OOOOWWWWWWWWWWWWWWWWWWWWWWWW!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MOTHERFREAKER that hurts!!!!

  • sova March 14, 2008, 10:26 am

    i cant hear the 17 one but i can deff hear the other ones..omg its soo eeerrrrgggghhh

  • grace March 28, 2008, 2:44 pm

    I can hear all of them, i am 13. My brother can hear all of them, he is 16. My dad can't hear any of them, he is 56. My mom can't hear any of them, she is 52. hmm…

  • Ryan April 2, 2008, 10:07 am

    I can hear everything and I'm 37. The thing is that afterwards it keeps bothering me, make my head and ears feel like they're clog.

  • Donna April 3, 2008, 5:38 am

    Woo-Hoo! I can hear all of them!!!!! My prize you ask? Feeling like my head is going to EXPLODE! HA HA HA HA HA HA HA! I'm a 26 yr old female. =D

  • Hawaii realtor April 8, 2008, 12:47 pm

    I can hear the mosquito too and I'm 46 years old!

  • noelle April 8, 2008, 5:22 pm

    umm well

    thats effing annoying

    but I'm totally gonna get it for my ring tone

    i can hear them all and I'm 12 soo yeah =]]] ???

  • lucy April 16, 2008, 3:25 am

    hey im 13,
    i can hear pretty much all the noises except the last one is unclear.
    i think it is really insulting actually,
    because tthere are teens like me who are completely innocent and i never hang round in gangs and annoy people. whats wrong with hanging round in a gang? standing around isnt hurting anyone.
    i think its discriminating really, because now they also use special lights that highlight spots and acne so teens wont hang around in a place where they'll look unattractive.
    also, security guards follow us around and i find it quite offensive because im an honest person and i have never stolen anything

  • bronte April 17, 2008, 1:56 am

    I am 32 yr old female. I heard all 4 files. The last two seemed to annoy my dog quite a bit. She barked at both when I played them.

  • Steve April 17, 2008, 5:16 am

    Don't feel too confidant about this test. I'm 54 and have some hearing loss from working in a factory for 30 yrs and I can hear all the frequencies listed.

  • Meghan April 17, 2008, 5:29 am

    im 12 and i hear all 5 perfectly. Once in every while i hear a ringing sound in my own house when im not doing anything and after like 3 minutes it goes away. anyone else having this ring?

  • Meghan April 17, 2008, 5:32 am

    btw im always listening to loud music on my headfones but its usually pop/rock/punk and not heavy metal stuff.

  • Zumi April 18, 2008, 7:27 pm

    Heh, I'm 20 and listen to eardrum splitting music all the time though can hear all those fine. Yet, as a test, I played the mosquito for my mother and father. Both got annoyed and confused as to what I expected them to hear. My sister then walked in to ask about the noise. She heard it from the other room, she's 18.

  • Rita April 19, 2008, 10:10 am

    I'm 21 and I hear all of them loud and clear.

  • RC April 23, 2008, 1:57 pm

    I'm 41 and heard the first two…and I did grow up on a healthy dose of Pistols and The Clash…..ZZ top on the other hand….seems to make you tone deaf ?

  • George April 23, 2008, 7:15 pm

    Heard them all, although the last one was pretty faint. I'm 39. I also grew up able to hear CRTs and other weird stuff and NO ONE WOULD BELIEVE ME!

  • Chris April 23, 2008, 9:21 pm

    I'm 38 and can hear them all on my Bose speakers. 18khz is pretty faint though.

    Now I have a headache and will take 3 Vicodin.

    All three bands: the Pistols, Clash and ZZ top were decent. However the cool kids listened to The Stooges, Suicide and Joy Division.

  • Joanne April 23, 2008, 10:48 pm

    I am 24 and heard all the tones. I also downloaded the generator and could hear 20khz also. I am one of those that can hear an idle tv from across the house and my computer monitor, and have suffered migraines my whole life. I'm going to look into a link between high frequency noises and migraines. There does seem to be a correlation between the two. I'm going to test my husband who is 29 and see what he can hear.

  • me April 24, 2008, 6:09 pm

    it is CRAZZY!!! my mom or dad can not hear it!!! it is soo hilarious

  • Matt April 24, 2008, 6:58 pm

    31 and can hear all of them with ease. I can't hear them over my speakers, but through headphones they're quite audible. Using the tone generator link, I can hear higher tones as well. I thought my hearing was shot–too many cranked guitar amps and being close to the speakers at concerts. It's nice to know I was wrong. I do have trouble hearing some people's voices with lots of background noise though.

  • KEVIN April 25, 2008, 5:08 am

    I'm 46 and I heard every tone listed with no problem what so ever I guess being a kid at heart does have advantages

  • lh195 April 25, 2008, 8:46 am

    I am 32 and known for crankin' up my music on top of working in a bar that has the music cranked up all night and I can hear all the sounds attached. But, the thing is I drive my kids nuts when the try to sneak watchin" TV when their not supposed to I can hear the noise of I guess the television tube and bust them

  • Lohocla April 25, 2008, 12:57 pm

    39 here, can hear them all fine (even the 18kz)…is actually nasty because it feels like someone is sticking a hot needle in my ear. My nephews played it to see if anyone could hear it besides them and they laughed when I jumped as if I’d sat on a tack.


  • Mark April 26, 2008, 12:35 am

    45 and can hear them all

  • Jack Link April 26, 2008, 7:19 am

    I agree, Alec, the mosquito sound itself is very dirty, but I remedied the problem in a different manner than you. I use a sound editing program called Goldwave for any of my aural needs, though I hear Audacity is great too. Anyway, there is a low/highpass function that I set to only accept sounds above a conservative 15000 hz (15khz), thereby eliminating any background hum, or anything else for that matter. Just thought I'd chime in. Great site, by the way.

  • Jessica April 26, 2008, 9:54 pm

    GOD that was loud!!!!!!!!!!!!!!!!

  • William May 2, 2008, 9:07 pm

    Just turned 24, I can hear them all clearly. I have a headache now…

  • B MAC May 4, 2008, 5:44 pm

    My son thought he was being quite a wiseguy when he told me about the ringtone and put it on my phone. He brags that kids use it in school. Guess what? I use the ringtone AGAINST him to get him out of bed in the morning!!!!!!!!!!

  • Cherie May 5, 2008, 9:09 pm

    I'm 15, 16 in a few days, and I can hear them all clearly. They all left me screaming in pain. :(

  • rb May 7, 2008, 12:42 pm

    i tried to record these on my cellphone but the sound was too high or somethin!!!!i can hear all of them (im 14) which is pretty cool :) but now i have a headache….great…

  • Morgue May 7, 2008, 4:35 pm

    Yeah… Hehe^^ Well, I'm almost sixteen and I can just barely hear the mosquito through my headphones when I turn it up all the way, whereas my sister, who is nine, can hear it from across the room at the same volume level through the speakers.
    Meh, too many concerts for me. Better stop doing that, I'll be deaf at 27…

  • ponderingwhy May 9, 2008, 3:37 pm

    i am wondering why every 16 year old and younger thinks it's necessary to post that they can hear it. duh you can, the chart above displays the frequencys that people above 24 can hear not hear. i am 14 and am just thinking out loud. so next time you think that it is absolutely necessary to do so, think again. i bet everyone is wondering the same thing, it's thought-provoking. im not trying to be a smart alec, it was just speaking my thoughts.

  • ponderingwhy May 9, 2008, 3:53 pm

    it's me again. now as i go up and read all of them i am listening for the high pitches throughout my house. it never occured to me that those noises were coming from my computer moniter. i have always thought that i was just hearing things but i guess not. this is like what all the other teenagers have said but we played it for my math teacher and she said she could hear it just fine and she's 24. we played it in our language arts teacher and she just looked around like she was waiting to hear it. its really quite funny when you think about it because i would imagine that these ringtones would make some adults feel really old. except for the ones who could hear it (like anne haight's father up there, 70 WOW! that's impressive. i hope i can hear that well when i'm older) just saying, it probably doesn't matter how old you are, just the level of pitches you can hear and how well you listen ;]

  • Stian May 12, 2008, 8:51 am

    i could hear them all.. also the 18k, but i needed to crank the volume to max, and put my ear to the speaker.. so, obiovusly, if i used my koss, i most likely would`ve heard it more clearly..

    24 btw

  • Katelyn May 12, 2008, 12:18 pm

    im 16 and i can hear all of them. i couldn't the last one when i went through them all at first but then i waited a few minutes and only did that one again and i could definatly hear it.

  • warren May 12, 2008, 2:06 pm

    i can hear all of them and im 13!!!

  • Claude May 19, 2008, 3:15 pm

    Calling all supersensory seniors–are you sure you're hearing the tones, or background noise on your speakers? I can hear SOMEthing when I play any of the sounds through the speakers, but it's all the same pitch, which clued me in to the fact that I'm hearing background noise when the speakers play the QuickTime file. When I switched to headphones, I, another 42-year-old male, can hear the 17K and 18K sounds as 2 different pitches, as well as the mosquito, but contrary to science, I cannot hear the lower frequency sounds. If my headphones had limited range, as some imply, why would they pick up the higher frequencies but not the ones closer to midrange, the range one would expect for normal voice and music?

  • De May 20, 2008, 10:35 am

    I can hear all of the sine waves I tried with this link. Actually I used to study electronics and do some calibration on o-scopes and have an average understanding of the subject. I have been looking for something to muffle the high pitch ringing sound that interferes with my sleep. I wake up at about 1am and can't seem to sleep until 4am. I bought a sleep conditioner and turn the TV on at times but the sound is not muffled, my brain is just focusing on a different sound. When I go out in the country, like the south, or down to Mexico I don't seem to have a problem with the ringing. It's really annoying and is getting more sensitive instead of less, which is contrary to what my Mom said. She said she could hear the same thing until she got older and it went away. When I was 4 I could tell the TV was on with the volume off from across the house. When I was 9 and 10, I would get up and read because I had problems sleeping in the middle of the night because of the ringing. My ears were checked at 13 and I was told that I have excellent hearing. Whoopee..I'm 34 and unless I am drunk or drop dead exhausted I suffer. During the day, I can distract myself and keep busy. But when I am supposed to relax and sleep, I cannot. I live in the San Bernardino area, so I was thinking that the city tends to have more going on in the air than the average slow town and that may be the problem. I lived in Mississippi and didn't have as much of a problem there. Any thoughts other than the obvious, move to the South? My daughter doesn't graduate for 6 years.

  • Dman5000 May 21, 2008, 8:35 pm

    My mother has ultra-sensitive hearing and must wear earplugs all day long, and she is 40 and can easily hear the 22kHz one on the web site. Is that normal

  • GuArAnI May 21, 2008, 9:01 pm



  • Eduardo May 22, 2008, 4:54 pm

    im 14 and i could here everything, im suprise my parents cant

  • David May 28, 2008, 4:35 pm

    I could hear all of them but I let my 50 year old parents listen and they counldn't hear a thing!!!I am sooo changing my ringtone!!!

  • David May 28, 2008, 4:36 pm

    again just telling you I'm 10

  • Olivia June 3, 2008, 11:11 am

    That was kool but my ears are still ringing. I'm 13 and could hear all of the tones. Its kinda creepy bcause after I played that last tone, my light bulb started flickering and blew out… 😀

  • Betty Hubbard June 5, 2008, 5:02 am

    I am trying to find a way to stop the noise as I get it day and night and it interferes with my sleeping. I suspect that someone does it intentionally. I live in a senior complex and am 74. It is not right that at our age that we should be subject to this type of inhuman behavior. Tell me how I can stop the noise in my house. Drowning it out is not an option. I have tried. Another lady heard it in my house too.

  • Austin June 9, 2008, 1:50 pm

    I'm 26 and can hear them all equally fine.

  • Michael June 26, 2008, 12:31 pm

    Although the spike at 15kHz, the ringtone contains frequencies all around the area of 90Hz – 11,5kHz (with peaks at 90Hz, 3kHz and 9kHz), which is probably what most of you (beyond 25) actually do hear. Besides, this explains why the sinus-waves are not clearly audible for some, even though the ringtone seems to be. 😉

  • Brendan June 26, 2008, 8:37 pm

    Ok – lets put some of this into perspective.

    There are many reasons that someone may hear 18k, 19k or 20k tones such as the ones referenced in this discussion – but most are NOT because you can physically hear those frequencies.

    While some people my age (31) are fortunate enough to still hear 18k, I know I stop hearing at just above 16k. My ears are checked twice yearly. ( I can however easily sense any frequencies above this range, and in blind tests have correctly identified 25k+ tones with a greater than 90% accuracy. But I digress.)

    The funny thing about these high frequency tones are that speakers will often play back a tone thats "different" to the one being fed to it, simply because speakers are not all "perfect". Its referred to in acoustics as non-linearities, distortions, poor dampening etc. This means that sometimes
    (a) you'll hear a low frequency click at the start and end of a tone (caused by the speaker driver speading up suddenly / slowing down suddenly, or the sample of audio starting / ending at a "non-zero" position. This is a dead give-away, and often makes people think they are hearing the tone with their ears, even if the ear is not actually hearing anything at all!
    (b) you'll hear a lower frequency tone than the one being fed to the speaker for the entire duration of the clip. I've done many many tests on speakers over the years, and you'll be surprised how different signals can be coming out of speakers compared to those being fed to the speaker. Its the speaker cone distorting (and there are many reasons why that may be occuring!)

    I truely believe this is why so many people think they can hear the 18k tones. My laptop speakers clearly put out a 9k tone when fed 18k – i saw it 2 minutes ago on a spectrum analyser. These types of tests are VERY misleading, and potentially problematic if people take the results too seriously.
    Indeed, many of these 16+k tones through a mobile phone cause the whole phone to let out lower frequencies at quite reasoable levels. I've seen tones as low as 3k come out from the phone when fed 16k signals.

    So this whole thing is really quite pointless, in that it doesn't show much at all.

    So, back to normal programming……

  • S July 14, 2008, 3:29 pm

    Iam 26 and could hear them all. The last one was quiet but I could also 'feel' it playing within my ear in a similar way you can feel low frequency bass.

    I teach music production so that might have something to do with it.

  • david July 19, 2008, 11:25 am

    i can hear them all and i am CRAZY!

  • Duane July 27, 2008, 11:36 am

    It's sort of disconcerting to see comments from teenagers commenting about how they "pissed off" their teachers, as if it's some badge of honor. Still more proof of today's kids who have so little discipline, so little respect for authority, and, worst of all, so little respect for themselves. This is why out country is on a downward spiral. Sickening..

  • Duane July 27, 2008, 11:38 am

    Dear Ponderingwhy:
    YES! You are correct…so was I….

  • Allen August 7, 2008, 11:20 am

    I'm a 46 year old music professor. I couldn't hear any of the tones. My kids could hear all of them, but the highest pitch was iffy. I play brass instruments and my dad owns a logging company. I operated chainsaws and heavy equipment as a kid. I wish I could turn back the clock.

  • Some Guy on the Inta August 10, 2008, 11:47 pm

    Allow me to just say:


  • Scott August 17, 2008, 8:45 am

    I am 43 years old and I can hear all of the tones as can my wife and 15 year old teenage son. For anyone that feels they can hear the tones hear, I encourage you to test them out in different ways. The humm from the speakers is easy to hear, however from a few of the tones the pitch above the humm is the actual sound that annoys. With a couple of the tones it sounds like feedback from a guitar or annoying like nails on a blackboard. Interesting stuff.

  • Hey September 16, 2008, 10:31 am

    I'm 28 and I can hear them all… and now I can hear a noise into my ears, without listening :S I'm afraid I will have headache soon….

  • TheSubtleDragon September 16, 2008, 4:14 pm

    I can hear all but one (15, dunno why), don't get how it hurts your ears though =
    You wanna make your ears hurt put some headphones on, set it to square, and then set it to 17

  • Chrissy September 20, 2008, 9:14 am

    I heard all of them I first found out about it at lunch and its pretty loud at lunch! I'm 13 and we played it in the middle of class and everyone turned around and looked at the person who did it and the teacher thought we were insane. It was tottaly LOL!!!!!!!!!!!!!!

  • johnny September 23, 2008, 3:10 pm

    Wow im 17 and i heard them all, but my dad who is 46 heard only the mosquito sound and he said it hurt his ears really bad

  • Tristan September 28, 2008, 8:37 am

    wow im 13 and i could hear all of them easly which surprised me since iv been to a few VERY loud rock concerts and people can always hear my head phones halfway across the room, but i can also always hear the tv on stand by the computer ringing pretty much anything eletronic (except my cell) i have an easy time hearing i have learned to succefully tune them out most of the time tho

  • Amanda October 5, 2008, 4:28 pm

    This sucks, I'm 24 and I couldn't hear any of them WTF? I guess it could have something to do with my work in the Marine Corps, on the flight line and on ranges…

  • Stargirl77 October 17, 2008, 12:23 pm

    I am 12 years old and i could hear all but the last one. I have always been able to hear the whine of the tv on standby, but when i pointed the noise the tv makes out to my grandparents, they couldnt hear a single thing, and they said i was making it up.

  • Stargirl77 October 17, 2008, 12:25 pm

    How do u download it to your iPod?

  • jr111089 October 23, 2008, 8:12 am

    i can hear all but the last 2 but i do have an ear infection and im 18 going on 19

  • Alexa October 24, 2008, 4:34 pm

    11 years old and I can hear all of them. The last one (18 and lower) is a little faint but once I get to 24 and lower I can hear it really good. I did 40 on my dad and it was loud for me and he's like "What's wrong?". HAHAHA no clue lol. Now my ears hurt hahahaa!

  • carly November 12, 2008, 2:37 pm

    ugh, i'm 14 and can only hear up to the 16000.
    we did this in class and i have the worst hearing,
    i DONT listen to my ipod real loud, so what's wrong with me!?
    haha, i think i have a cold, so i'll try again next week to see if that has anything to do with it..
    wish me luck!

  • kaleb November 15, 2008, 10:53 am

    hi im 16 and i can only hear the 15 and down.is something wrong with me?
    i figured i should have better hearing since i have really bad eyesight (without my contacts i cant make out a face 3 feet in front of me) i listen to music alot but not very loud.kinda makes me feel like all my senses are being dulled.

  • Meee! November 16, 2008, 4:14 pm

    I can hear them all! My dad couldn't hear any of them and I had my speakers turned all the way up…. I'm 13

  • Monkey November 24, 2008, 4:29 pm

    Your 17 and 18 Khz tones are LOWER PITCH than the 16 Khz tones.
    I suspect that the files are undersampled, resulting in frequency aliasing.

    53 Year Old Male – with tinnitus in a range higher than the 16 Khz tone – very annoying.

  • George November 30, 2008, 8:41 pm

    Hey, I'm 13, nearly 14 and I heard all 4 perfectly, even the ~18000Hz one. =]

  • Petr December 2, 2008, 3:10 am

    I read that some of you can not hear the 18000Hz sound. I could not at first(I ma 26 years old) but then tried on a different pair of earfones and could hear the sound clearly. So It depends on the earphones you are using aswell.

    And no both my earphones are of higher quality costing more then 100$ sennheiser, koss

  • KTC December 2, 2008, 5:47 am

    The positive aspect is that I've got the hearing of someone more than ten years younger than my current age of 27. I could actually hear it from three feet away via my headset. The negative…what a way to start a morning…gawh. Ack.

  • HandyMan December 4, 2008, 8:16 am

    I am 28 years old and can hear them all fine, the mosquito is annoying and the 18 just kills my ears, i would hit anyone htat had those as ringtones near me.

  • mrscullen1918 December 7, 2008, 7:07 am

    heyy, this is awesome! I hear it all the time in my math class, so, like, everyone has it! MY mom gets mad at me when I get texts, so this is perfect! Thanx!

  • Christina December 9, 2008, 10:17 pm

    Im 19 years old and cannot hear ANY of those. . my 20 year old boyfriend in same same room can hear them all. WHAT THE HECK?!?! ..I must be going deaf..

  • Kayleigh December 19, 2008, 3:00 pm

    I heard about the Mosquito Sound thing at school today. I Googled it and I found this article. My math teacher is 24 and when a kid played it, he said he could barely hear it but he could hear it. Then another teacher, who is like 30 something, walked in and all the kids were complaining about the sound Mosquito Sound the kid kept playing, and she was totally oblivious. I am 13 and I can hear all of those sounds, it hurts my ears though.

  • Jack December 23, 2008, 10:18 am

    i am 13 and i can hear them all except the last one but the last one still hurts my ears

  • Jack December 24, 2008, 4:34 am

    what freqency is the original mosqueto

  • stephanie December 26, 2008, 7:00 am

    im 18 and i cant hear any of them!!! wtf

  • gladus January 5, 2009, 6:37 am

    im 93 years old and i can hear all of them!!
    i even took my hearing aids out, but then i couldnt hear them so i put them back in and now i can hear all of them!! this is great!

  • Damien January 17, 2009, 5:47 pm


  • drunkusher January 20, 2009, 11:42 am

    I heard them all quite clearly, except for the Mosquito. Have been playing around with the tone generator that ships with Cooledit Pro. Its amazing. Although i cannot hear the higher tones , it doesnt stop me from feeling sick to the pit of my stomache after continued exposure to some. I would imagine that an inovative teacher type( coughs)err (ahem) would be able to construct a simple microphone device thingy,hooked to an oscillator wotszit, and …….We fightin' back kids!

  • drunkusher January 20, 2009, 11:44 am

    PS: post above pertained to laptop speakers. lol.

  • Dylan January 26, 2009, 5:08 am

    I'm 12 and I can hear them, but for the last one I had to turn the volume up a bit lol.

  • Trevor January 29, 2009, 5:23 pm

    I'm 12 and I can hear them all. Even the last one. I'm definitely use to it. Got some friends using it all the time in English. Though, not very smart because the teacher is in her mid twenties. So when he plays the ringtone for fun, she looks around the room really mad and looking at everyone.

  • jared February 3, 2009, 8:14 am

    do u think im this stupid?? if u do ur a big fucker

  • John February 4, 2009, 10:55 am

    I'm 11 and i can hear all the mosquito sounds posted. There's a trick I'll send text messages in class to my friends

  • kirk s February 4, 2009, 3:01 pm

    Well I'm 43 and can only hear Mosquito and 15K. The others are silent for me.

    I wish it was because of laptop speakers but my daughter hears them all no problem. I also tried good headphones and the ones I could hear sounded better/louder, but the others were still silent.

  • Scott O. February 6, 2009, 10:07 am

    I am 22 and have been djing and concert attending for a solid 4 years. I can hear all the tones audibly through Sony MDR-V6 Studio Monitor Headphones. I did download a 20kHz sine wave generated by Audacity and even though I can tell the tone is playing, it is not nearly as audible as the 17959 tone here. I am surprised at the results with knowing what I have put my ears through on a daily basis.

  • John Cena February 7, 2009, 5:56 pm

    Im barely like 25 and this noise really hurts my ears. I can't bare this noise

    – John Cena

  • sarah jones February 14, 2009, 11:17 am

    i'm 16, i can hear all of them but the last one…how come people older than me and younger than me are able to hear it but i'm not?????

  • Ericka February 17, 2009, 7:29 am

    The 18 Khz was perfectly audible to me. But maybe thats because I'm 16 =].

  • Tasha February 23, 2009, 8:48 pm

    I am 32 and I can hear them all.

  • Spin Sycle March 1, 2009, 10:56 am

    Don't know about the other tones but I can hear the mosquito just fine and i'm 41

  • Grimn March 2, 2009, 11:43 am

    I could hear all of them. I'm 45, male, and have worked in heavy construction, all of my life. Using Chainsaws, Drills, Jack Hammers, air tools. I've listened to rock music all my life (Ted Nugent, Live) And been a hunter, shooter, all my life. I would have sworn that I was tone-deaf, or partially deaf until now. What Gives?

  • Walter March 5, 2009, 10:23 am

    Well.. Saddly I could only hear the first one. BUT I think I have a couple things in my favor over that. One, was listening to LOUD Metal music 45 min before listening to them (try agian tomorrow i guess) I have a constant ringing in my ears anyway, I suffer from chronic migraines, and secindly, I used to shoot rockets in the Military. My hearing is shot but for low tones in my left ear, and only high ones make it to my right ear…go figure huh?

  • Cara in Exile March 14, 2009, 9:31 am

    I'll be 40 next month, and can hear them all just fine, though the last one is more annoying than audible. I have children shrieking in my ears all the time, and thought that would damage my upper hearing range, but apparently not.

  • Dan March 16, 2009, 8:22 am

    I can hear all of them except the "mosquito" one. I'll be 47 in two months and am a sound tech. On another site I found a total of ten tones that run from 14khz through 22 khz and I could not hear any of them. However, all of them did bother my cat who was sleeping in the chair next to me. Each of them caused her to stir and after the sixth play of the 22 khz tone, she left the room.

  • mat March 31, 2009, 5:34 pm

    i am 15 and my friends have been using this at school A LOT! it gets really annoying after 3rd period when all you can hear is ringing… its pretty funny when the teachers cant hear our phones going off right in the middle of class. although the mosquito tone is a lot louder? than the 15khz. its probably because its a mp3 file versus the pure sine wave. also it was hard to hear the 16969 khz probably because of my headphones but i'm not sure. either way i wish that it was never invented. honestly we teenagers are very smart and will retaliate to anyone using this as a non-eathal "weapon" to "scare" us away. as a matter of fact one of my friends took this tone to the next level by moding the volume and sent it to all the teacher via email that failed him. most whose speakers did not burn up heard the ringing in their head all day long. i do not recomend using this tone in any way, shape, or form. it is extremely dangerous and causes migraines. if you want to annoy a teenager shoot them with a paint ball gun!

  • Alex April 1, 2009, 9:03 am

    I am 17 and i can every but the 17595 hz tone very clear. To hear this tone i realy have to concentrate, since its very quiet to me.

    Is it normal? Or should i go to a doctor?

  • Gabe April 3, 2009, 12:52 pm

    I am 14 and i can hear all of the sounds. I am sitting across from my mom and played all of the sounds with no reaction from her (she's 51), however, my dog started flipping out.

  • Ai-Khanh Duong April 4, 2009, 2:45 am

    I am thirteen and I can hear all of them. Good for me becaues I'm a musician. ^_^ Is it also normal to constantly hear the last one when I play computer? Because for some reason, I do and so does my older sister.

  • Aaron April 6, 2009, 5:57 am

    I'm 32 and I can't hear any of them. I'm currently suffering from tinnitis and I think the ringing in my ear is drowning everything out.

  • megan April 7, 2009, 7:00 pm

    ok im 14 and i could hear all of them but the last 2 i could just hear barley like i could hear like very very faint.

  • Matthew G April 13, 2009, 9:08 am

    I am about to turn 19, I can hear all except the last one, like Glen P I used to suffer from Migraines and often hear a similar high pitched tone anyways.

  • khayree April 13, 2009, 2:42 pm

    its not letting me download the tone for my blackberry flip

    i have t moblile

  • solomon kane April 14, 2009, 9:22 am

    im 50 and i had to turn the sound up all the way and heard the same sound on all the files. it was a low hum with a click at the end, lasting about five seconds.

  • solomon kane April 14, 2009, 11:27 am

    used the scope viz in win mp. sounded like tones with noise and still had to turn the vol up. this place has some tones to test your hearing. http://journal.plasticmind.com/ears/mosquito-tone
    i heard all the tones fine there.

  • lil lady 223 April 14, 2009, 2:10 pm

    i can hear all of them im 13 the last one was a little harder but i still heard it

  • Arianna April 18, 2009, 7:55 pm

    i could hear all except the 16961 Hz pure sine wave, it was weird… i guess i'm just abnormal. i'm 15

  • Arianna April 18, 2009, 8:00 pm

    ok wait now i can only hear the first three… :

  • KK April 23, 2009, 9:31 am

    I am 30 and I can't hear any of the sounds.

  • Dalton May 1, 2010, 5:16 pm

    Im 12 and I can hear up to 20,000 Hz 😀

  • rojina May 4, 2010, 7:09 am

    Im 14 and I can hear all of them!!!!!!

  • fajr May 6, 2010, 4:33 am

    im 13 i can hear it and my moms 36 she can also hear it this is FAKE!!

    • Alec May 6, 2010, 5:11 am

      It may not be fake 😉 I'm 46 and I can hear it, but many older people I know can't. I also know young people who can't hear it…

  • Alexander June 9, 2010, 8:37 am

    I'm 23 and can hear all of it! Fail technology!;)

  • Stephanie July 10, 2010, 4:09 pm

    I'm 39, and I could hear all of them..obviously, the first 3 better than the last one.

    • Jami August 23, 2010, 10:30 pm

      I'm 37 and I could hear all of them but the 1600Hz, I couldn't hear it but I could feel it. It made me head, not my ears, hurt each time I played it, and I tried it several times, not a nice feeling at all. My son told me today that kids on his bus kept playing these Mosqito ringtones over and over again, and it gave him a headache and made him sick to his stomach, is this a normal reaction for an 11 year old?

  • twinner42 September 9, 2010, 7:36 am

    I'm 27 and I can't hear any of them. Maybe it's time to get my ears checked.

  • Austin December 22, 2010, 2:15 pm

    On other sites they have the 18.8 kHz ones…I'm thirteen and I can hear up to that but my mom can't

  • Ouch... June 13, 2011, 11:34 am

    geh yeh ended up ripping headphones off when started listening to the first one, think might wait a bit try the others, ears hurt, hope didn't have it to loud as hard tell the sound setting on my headset. But have known a while am fairly sensitive to the high notes and usually have difficulty with headaches from music especially recorded music.

  • lol September 16, 2011, 12:39 pm

    bit late but the "mosquito" thing is under 15 Khz, actually near 14.8 Khz according to my spectrum analyser

  • HOWARD October 25, 2011, 10:21 am

    Can you please contact me. Very Important question for you. My neighbor condo unit is using these tones to invade my condo unit with this irritating tone. Is there a detector I can purchase to prove this tone is present in my home?

    Thanks for your help — howard@aventurawaterviews.com

  • Richard July 25, 2014, 1:38 am

    The ringing drives me crazy. This works thought

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