Test Your Hearing.
Annoy Other People.
Get a Free Stealth Ring for your Phone.
These are some of the reasons to check out FreeMosquitoRingtones.org.
Supposedly most people lose their upper range of hearing as they age. A story in England mentioned how teens used these high pitched ringtones in classrooms th at their teachers couldn’t hear, so they could send and receive texts undetected.
Well, here’s a bunch of ringtones you can download to your phone – mp3 and wav formats.
To see how good your hearing is (and the highest one to use that you can still hear), play these through a set of speakers that have a rated 20,000Hz response or better. Your hearing may be better than you think if the speakers aren’t able to reproduce the sound.
If you have a dog or cat, they can usually hear the higher frequencies so you can tell if the speakers are producing them by your pet’s reaction. Then see if YOU hear it too.
Personally, I can hear all the way up to 22K… I must be an alien or something because according to the chart, I’m too old to hear that high.
[the following is excerpt from their site:]
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.