In extreme cases, sonic weapons can cause nausea, dizziness, and even permanent damage. In this case, officials used it to ...
On a suburban street in Maple Grove, a device first built for battlefields and warships was pointed at a crowd of Minnesota ...
Minnesota State Patrol troopers used a powerful sound system first used by the military in Maple Grove, Minnesota, to ...
LRAD sound weapons at protests use focused acoustic beams up to 162 decibels that cause permanent hearing damage, but distance and industrial earplugs provide effective protection.
When the crowd ignored repeated dispersal orders, officers announced they would activate a long-range acoustic device, or ...