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March 18, 2008 by Jen in CT

Remember how some shops are using ultrasonic tones piped outside to discourage teenagers from gathering in large groups in front of them? It looks like the teens have turned the tables and are now downloading the ultrasonic tones to their cell phones so they can take calls on the sly while in school. I wondered if I would be able to hear the tones, so I took this quiz.

You are the typical teenager
You can hear the frequency of the mosquito teen repellent – but probably not for much longer!The highest pitched ultrasonic mosquito ringtone that I can hear is 17.7kHz
Find out which ultrasonic ringtones you can hear!

What is the highest frequency you can hear? Thanks to John Scalzi over at Whatever for the links.

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Posted in off topic | 5 Comments

5 Responses

  1. on March 18, 2008 at 9:04 am Bubblesknits

    17 was the highest I could hear, although I ran all the cats out of the room with the higher ones. lol


  2. on March 18, 2008 at 10:20 am Rima

    I need to try that later when it’s quiet. My friend says I can hear a cockroach’s heartbeat.


  3. on March 18, 2008 at 10:26 am Jen D.

    Dude, all those cymbals crashing in my ears and base drums have taken their toll… Sigh. 16.7


  4. on March 18, 2008 at 1:55 pm Mom

    Oh dear, 12kz for me


  5. on March 18, 2008 at 6:25 pm wishiwerebuffy

    I got the exact same as you. Some of them actually hurt my ears.



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