The Long Range Acoustic Device (LRAD) is a sound technology designed to project clear audio over long distances. It is often used for communication in emergency situations, crowd control, and maritime security. The device can emit loud sounds that can be heard from several kilometers away, making it effective for alerting or directing people. LRAD can also produce focused sound beams, allowing for targeted messaging without disturbing surrounding areas. This capability has made it useful for military and law enforcement applications, as well as for public safety announcements during large events or emergencies.