The RH20Y by Beijing RIBRI is a vehicle-mounted Long Distance Acoustic Device (LDAD) designed for security, public safety, and emergency operations. Combining high-power directional acoustic hailing with a 4MP camera, 32× optical zoom, and optional LED searchlight and laser modules, it delivers integrated audio-visual capabilities for mobile security platforms. With a peak SPL of 156 dBA, a maximum specified range of 1,778 meters, and a 360° pan-tilt system, the RH20Y supports long-range voice announcements, perimeter protection, border patrol, crowd management, and critical infrastructure security. Its IP65-rated design and MIL-STD-810H environmental testing support deployment in demanding outdoor conditions.
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