![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Soundweapon1.jpg/640px-Soundweapon1.jpg&w=640&q=50)
Long-range acoustic device
High-powered loudspeaker / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Long Range Acoustic Device?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
"LRAD" redirects here. For the dance qualification, see Licentiate of the Royal Academy of Dance.
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. It has been used as a method of crowd control, which has caused permanent hearing damage, having an extremely high decibel capacity (up to 160 dB measured at one meter from the device).[1] Other uses have included for negotiations in siege situations to deal with piracy at sea; for mass notification during natural disasters or other emergencies; and by defense forces, including several navies.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/3/32/Soundweapon1.jpg/320px-Soundweapon1.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7a/LRAD-US-Navy.jpg/320px-LRAD-US-Navy.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/USS_Donald_Cook.jpg/640px-USS_Donald_Cook.jpg)