The idea is that most.
Find out just how far your ears can hear into the range of ultrasonic ringtones. Pretty much everyone should be able to hear the lowest tone (8kHz). Many people.
Several young students have caught on to a recent trend: a ring tone that only they can hear and most adults can't. Dubbed the Mosquito, the.
Download mosquito ringtones only audible to teenagers. Adults cannot hear. The audio files of these ultrasonic mosquito tones are in MP3, WAV, OGG, and.