now only $ 879.99 ACCOUSTIC NOISE GENERATORBug Detectors – Accoustic Noice Generator Produces An Audio Blanket That Defeats Eavesdropping In Ceilings, Walls, Window Vibrations, AC Ducts, Plumbing And Other Places TSCM Sweeps Can Miss The ANG-2200 is designed to defeat wired microphones inside walls, contact microphones, audio transmitters located in AC outlets, and laser/microwave reflections from windows. Most sound masking systems inject noise into an otherwise benign environment. In this environment, the occupants must raise their voices above the noise level to communicate, which invariably, eliminates the benefit of noise masking. REI's masking system injects noise into the environment perimeter
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