The Global Leader in Long Range Acoustic Hailing Devices


Maritime Communication & Safety

Protecting Ships, Passengers & Crew

In response to the deadly October 2000 attack on the USS Cole, LRAD Corporation created the acoustic hailing device (AHD) market by developing its proprietary Long Range Acoustic Device technology and systems.

LRAD resolves uncertain situations and saves lives on both sides of the device by broadcasting highly intelligible communications and warning tones with focused acoustic output to clearly determine the intent of vessels not responding to radio calls, change threat behavior and enlarge vessel standoff zones beyond 3,000 meters.

Using attention commanding voice commands and deterrent tones to safely establish and enforce large standoff zones, LRAD systems unequivocally determine the intent of security threats and provide maritime security officers more time to initiate an elevated response to unauthorized incursions if necessary.


Naval forces throughout the world are equipping their fleets with LRAD systems as an essential component of their escalation of force (EOF) protocols. In uncertain situations, the EOF is increasingly initiated through hails and warnings broadcast by LRAD systems to potential threats and intruders.

LRAD provides captain and crew more time and distance to determine intent and distinguish between intruders, terrorist threats, fishing boats or commercial ships, and respond appropriately.

LRAD’s broadcast range exceeds the CINCLANTFLT Naval Vessel Protection Zone for standoff distances for ships pier side, at anchor or in restricted waters. LRAD’s unmatched acoustic performance is also used to conduct interdictions at sea, for UNREPS, and other naval duties.

Coast Guard

Coast Guard services are experiencing increasing territorial water incursions and homeland security threats. LRAD’s attention commanding voice broadcasts and warning tones enable coastal defense personnel to determine the intent of vessels not responding to radio calls and enforce marine and littoral zone regulations.

During suspect boat interceptions, LRAD systems ensure the Coast Guard’s commands and instructions are clearly heard and understood over engine, wind and background noise.

Naval Bases

The U.S. military employs LRAD-RX systems for perimeter security and enforcement of exclusion zones around certain naval bases including the Bahrain Naval Base pier.


The Ports of Corpus Christi, Texas, Ras Laffan, Qatar and Aqaba, Jordan installed advanced security systems featuring the LRAD-RX to broadcast multilingual hails and warnings to inbound ships not responding to radio calls. The LRAD-RX reduces false alarms and port security response times associated with confirming or denying port entry.

Maritime Facilities

LRAD-RX systems provide maritime facilities enhanced perimeter security to more effectively protect personnel and assets.

LRAD systems are in use in more than 70 countries around the world.

Contact LRAD Corporation for more information.