Long-range acoustic device - Wikipedia
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.
LRAD Products - Genasys
Long Range Acoustic Devices. LRAD is the global leader and de facto standard of Acoustic Hailing Devices (AHDs). Featuring Genasys’ Advanced Driver and Waveguide Technology, LRAD systems broadcast audible voice messages with exceptional clarity over long distances and loud background noise.
Using Long Range Acoustic Devices (LRADs) for 2025 - Genasys
2024年3月18日 · In the realm of audible communication technology, one innovation stands out for its versatility, clarity, and effectiveness: the Long Range Acoustic Device (LRAD). Developed by Genasys, LRADs have revolutionized communication in many settings, offering unparalleled capabilities that ensure recipients receive instructions and information across ...
How to Dodge the Sonic Weapon Used by Police - Popular Mechanics
2020年6月17日 · What appears to be a projector, a box amplifier, or a loudspeaker mounted on a police car or strapped to an officer’s chest is a relatively modern military-grade deterrent that creates powerful...
How LRAD Works - HowStuffWorks
2023年11月22日 · Police departments and land-based military units have found uses for Long Range Acoustic Devices. Authorities like police forces can give warnings and instructions that are audible to a large group of people. They can even use the devices to order crowds to disperse.
Explainer: LRAD -- What Is It And How Does It Work? - Radio Free …
2013年3月13日 · The LRAD, or Long Range Acoustic Device (pictured here on the right) can emit a blast of amplified sound capable of inducing headaches, panic, and potential hearing loss.
Health Impacts of Crowd-Control Weapons: Acoustic Weapons
The LRAD (Long Range Acoustic Device) brand: The LRAD has a range of 8,900 meters for intelligible speech and a maximum output of 12 decibels at one meter. It can cause pain at 20 meters and permanent hearing loss at close range (5 meters or less).
What Is LRAD and How To Use It Most Effectively - criticalts.com
2024年12月10日 · 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 commonly used in civilian law enforcement.
LRAD: The Sound of Possible Excessive Force
2019年11月30日 · [1] An LRAD, short for long-range acoustic device, was used against American protesters for the first time at the G20 Summit Pittsburgh protests in September 2009. Over the past decade, LRADs have only become increasingly popular among law enforcement, to the point where the device is now a common feature of many department’s crowd control ...
LRAD Solutions - Genasys
State of the art, long range acoustic devices for use across public safety and military applications. Find the LRAD solutions that best fit your applications. View the most popular LRAD accessories for a variety of LRAD speakers. Read about real-world LRAD applications across the globe.