Several police departments across America are planning to try a new device that uses focused sound, turned way up. These so-called non-lethal... Focused Sound 'Laser' for Crowd Control Crowd control ...

Mayor Ted Wheeler on Friday night directed Portland police not to use sonic warning tones to control crowds after officers activated it at the tail end of an all-night protest and signaled he’s in ...

LRADs can take on many looks, but generally resemble a box amplifier or loudspeaker. Although LRADs can be used to project human voices or recordings across long distances, they are also used to emit ...