Mosquito ringtone

http://www.freemosquitoringtones.org/

Quote:
"What is the Mosquito Ringtone?

The short version, A tone outside the audible range of hearing for most people over the age of 30. This means that you can get phone calls and receive text messages in class or school without teachers hearing it. For more in-depth information on how the mosquito ringtone works, please see the Mosquito RingTone FAQ. For information on how to get the ringtone on to your phone, see our Mosquito Ringtone how-to Guide."

Can you guys confirm it works?
For me it's about right. Dunno if I would recognize it as my ringtone though...

 

I used to get like 3 people in the class to turn these on with me and the whole class would be bitching and complaining and the teachers have no idea wtf it is.

 

ok fixed the title
I am 23 but not entirely sure I can hear the one for -24.

 

i cannot hear the -24 one but i can hear the -30 one

 

ok.. second check.. i can hear the 2nd -24 one

 

22khz just fine.. but I just ate some shrooms..

 

22 khz I can hear. Woohoo! I thought I had damaged my ears after years of playing in a band.

Actually I'm more sensitive to the 22khz one than some of the "louder" ones. Some you can only hear when they go on or off but during they sort of fade out. They'd be hard to hear in class or at work.

 

do you just eat shrooms everyday?

 

He's so close to the ground it's hard not to