New York: A ringtone which prying elders can't hear - if you think it is just a teen fantasy, step aside.
Cellphones, which youngsters can hear but most adults can't, are now in vogue in American schools.
The technology was developed in Britain and it is based on the fact that most adults gradually lose the ability to hear high-pitched sounds.
But recently, it has spread to the US schools where bringing cell phones to class-rooms is banned.
The use of peculiar ring tones came to light recently in a school in New York where the cell phones must be turned off in class rooms, New York Times reported.
The Times said that last week, a high-pitched ring tone went off that set teeth on edge including their 28-year old teacher.
When she asked whose cell phone it was, the students were surprised and asked her how could she hear it when it should be inaudible to the adults?
But apparently her ears had not yet lost the sensitivity.
The Times says that cell phone ring tone was the offshoot of an invention called the Mosquito, developed last year by a Welsh security company to annoy teenagers and gratify adults, not the other way around.
It was marketed as an ultrasonic teenager repellent, an ear-splitting 17-kilohertz buzzer designed to help shopkeepers disperse young people loitering in front of their stores while leaving adults unaffected.
Comments
0 comment