During protests in the USA, security authorities use LRAD systems for announcements and crowd control. How do these "sound cannons" work?
Morning Overview on MSNOpinion
Battlefield voice of God sound weapon turned on Minneapolis protesters
On a suburban street in Maple Grove, a device first built for battlefields and warships was pointed at a crowd of Minnesota ...
Regtechtimes on MSN
Police blast protesters with military-grade sound weapon during Minneapolis demonstrations
In recent days, people have shared videos and reports showing ICE agents and other officers using a Long Range Acoustic Device, or LRAD, against protesters in Minneapolis, Minnesota. An LRAD is a ...
Minnesota State Patrol troopers used a powerful sound system first used by the military in Maple Grove, Minnesota, to ...
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