The original ultrasonic ringtone high frequency hearing test Find out just how far your ears can hear into the range of ultrasonic ringtones. they can only be heard by kids and generally can't be heard by adults over the age over 20 or so.
Even tones that you cannot hear can damage your hearing (or your speakers or You can hear sounds at frequencies that are out of range for many adults.
Download mosquito ringtones only audible to teenagers. Adults cannot hear. The audio files of these ultrasonic mosquito tones are in MP3, WAV, OGG, and frequencies the dogs are young herders and react to everything. this is bee ess.
See if you can hear the Mosquito Ringtone that only somethings are supposed to be Mosquito Ringtone: Parents & Teachers Can't Hear It, But Teens Can.