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 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 …

Mar 17, 2025 · 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.

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 …

In uncertain or escalated public safety situations, LRAD fills the critical gap between the limited range and poor intelligibility of bullhorns and vehicle P.A. systems, and kinetic measures including tear gas …

Dec 10, 2024 · Managing large crowds and communicating effectively over long distances is a challenge in law enforcement. Tools like the Long Range Acoustic Device (LRAD) have become valuable …

Mar 21, 2025 · The directional acoustic beam formed by an LRAD (typically 15-30 degrees) employs the same wave physics principles that sound designers use for line array systems in concert venues, but …

LRAD systems provide law enforcement with clear, long-range communication tools, allowing officers to manage crowds, issue commands, and de-escalate situations from a safe distance.

LRAD is law enforcement’s communication systems of choice throughout the world, including in more than 500 U.S. cities. LRAD systems are fundamentally changing the way law enforcement agencies …

claim to be an expert on LRADs or sonic weaponry. This fact sheet has been cobbled together from available information online (LRAD instruction manuals, marketing datasheets, interviews, other …