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The Mosquito
Videos
The Mosquito or Mosquito alarm is a machine used to deter loitering by emitting sound at high frequency. In some versions, it is intentionally tuned to be heard primarily by younger people. Nicknamed
A Mosquito device mounted outside a store in Philadelphia
A Mosquito device mounted outside a store in Philadelphia
Sonic weapon
Videos
Sonic and ultrasonic weapons are directed-energy weapons of various types that use sound to injure or incapacitate an opponent. Some sonic weapons make a focused beam of sound or of ultrasound; others
The Mosquito
…Columbia, Canada, the device has been credited with lowering exterior vandalism at one school by about 40%. Opposition categorises it as an indiscriminate sonic weapon which succeeds only in demonising children and young people and may breach their human rights. The National Youth Rights Association has met with some…
A long-range acoustic device (LRAD) in use on the USS Blue Ridge
A long-range acoustic device (LRAD) in use on the USS Blue Ridge
An NYPD officer stands ready with the LRAD 500X at an Occupy Wall Street protest on November 17, 2011 near the city hall.
An NYPD officer stands ready with the LRAD 500X at an Occupy Wall Street protest on November 17, 2011 near the city hall.