Teenagers have a new enemy and it goes by the name of Sonic Teenager Deterrent. The device which can be attached to the outside wall of shops, offices and homes, sends out ultra high-pitched 80-decibel bursts(up to 16khz) of pulsing sounds that can be heard by those under the age of 20. Adults are not affected by the sounds due to the body’s ability to detect some frequency waves disappear after the age of 20. For those people who are lucky enough to hear it, the sound is so distressing, it forces you to clutch your ears in discomfort and run for the hills. The sound has been described “like a demented insect or a very badly-played violin.” Owners of the device can control the strength of the signal and it does not penetrate indoors. The device has proved so successful in warding off gangs that Police and local authorities in the UK are supporting the gadget. Price:$1100
UPDATE: March 24,2006:Teen-repellent shop siren silenced by human rights fears (AFP)
[tags]gadget,teenagers[/tags]
[via Daily Telegraph]

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