Ultraschall Audio Aufnahme Blocker für stationäre Anwendung 100 US Wandler
2.150,68 €
100 powerful ultrasonic transducers. The transducers provide the most efficient microphone suppression at a distance of up to 4 m (13 ft). The angle of interference signal reaches 180°. BugHunter Daudio BDA-5 is designed to protect conversation areas from eavesdropping.
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