A long-range acoustic device (LRAD), acoustic hailing device (AHD) or sound cannon is a specialized loudspeaker that produces sound at high power for communicating at a distance.

Jun 17, 2020 · During the 2020 protests, police have used an LRAD sonic weapon to disperse protesters. What is it, how does it work, and how can you protect your ears?

Mar 26, 2025 · Serbia's police, army and the state security agency, BIA, initially all denied possessing the U.S.-made Long Range Acoustic Device (LRAD), which is illegal in Serbia and some other countries.

An LRAD was used by the crew of the cruise ship Seabourn Spirit in 2005 to deter pirates who chased and attacked the ship. [3] More commonly this device and others of similar design have been used to disperse protesters and rioters in crowd control efforts.

Mar 17, 2025 · What makes sound a weapon? Review the basics of sound and discover exactly how the LRAD produces its "beam of sound." We'll also explore LRAD's hailing and warning abilities and other uses for sound.

Mar 17, 2025 · Serbian President Aleksandar Vučić has brushed aside accusations that his police forces used a military-grade LRAD (Long Range Acoustic Devices) cannon against a crowd of hundreds of thousands of...

Feb 20, 2022 · At vaccine mandate protests in Canberra last week, police used powerful loud-hailing devices called Long-Range Acoustic Devices (LRADs) to address protesters. While some protesters...

Sep 18, 2020 · The weapon, the Active Denial System (ADS), is a real thing, as is the sound system, which is called a Long Range Acoustic Device (LRAD).

4 days ago · The LRAD is a so-called “non-lethal weapon”, developed for the U.S. military after the 2000 attack on the USS Cole off Yemen as a way to prevent operators of small boats from approaching U.S. warships.

Dec 10, 2024 · What is LRAD? A Long Range Acoustic Device (LRAD) is a specialized sound-emitting tool capable of delivering high-frequency sound waves over significant distances. Originally developed for military purposes, LRAD technology is now …