Philadelphia Uses ‘The Mosquito’ To Buzz Away Loitering Teens
Call: +44 (0) 1685 350418 Basket (0)

Philadelphia Uses ‘The Mosquito’ To Buzz Away Loitering Teens

The president of Moving Sound Technologies, Michael Gibson says each small speaker emits a high-frequency tone, said to be harmless, but highly irritating to teenagers and young adults. “They find it extremely annoying and will leave an area within a couple of...