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
But now teens
have struck back against the Mosquito: They
are using the same sound to communicate without
At issue is a text-message ringtone that emits the same pitch as the Mosquito. Using it, students can learn about
a new message while they
're in class — where they
're not supposed to be using their cellphones. Most
of their teachers can't hear the alert.
Inventor Howard Stapleton, creator of the Mosquito teen
repellent, says only
a few people over age 30 can hear the Mosquito's sound.