The war between teens and authority figures has a new — or old — front: ears. British shopkeepers tired of teenage loiterers have turned to the Mosquito teen repellent, which emits a high-pitch frequency that most teenagers can hear — but not most...
High-pitched noise lets teens monitor calls in class An alarm designed to clear teenaged gangs out of shopping centres has been sampled by teenagers so they can hear their phone ringing in class. It works because the noise cannot be heard by anyone over the age of 20....
Teen Buzz is a ringtone that takes advantage of a high-frequency sound that grown-ups can’t hear. If adults can’t hear your phone ring, text-messaging becomes possible anywhere, anytime. In a stunning re-imagining of a weapon used against them, teens may...
A yob-busting alarm using ultra high sound to drive teenage thugs from shopping centres has been hijacked to create inaudible classroom ringtones, it emerged today. Techno-savvy school kids are getting away with using mobile phones in class through the creation of...
The mosquito alarm is usually effective in driving away youths from shops by emitting a high pitch sound that is mostly audible to those under 20. The obvious benefit with most teachers being over this age is that Tech-savvy teenagers can get away with leaving their...
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