VT4 Anti-recording device Audio Recording Blocker white noise to

KAD TECHNOLOGY CO.,LIMITED VT4 Anti-recording device Audio Recording Blocker white noise to prevent 2-3m [VT4] - Product Description This portable recording jammer produces ultrasonic wave from its 21 transmitters, as interfering signals against eavesdropping devices like smartphones, recording pen, monitors and so on, to disable their recording function and leave only irreparable noise. Widely it is used at office interviews, meetings or other intended purposes. Also Due

Microphone blocker “DAudio BDA-3” with 7 ultrasonic transducers is an improved model with new suppression system and an option to connect an

Ultrasonic Audio Recording Blocker | White Noise Generator | Powerful Microphone Suppressor Device | Prevent Voice Recording | BDA-3 (FCC, CE & ICES

Microphone blocker “DAudio BDA-3” with 7 ultrasonic transducers is an improved model with new suppression system and an option to connect an

Ultrasonic Audio Recording Blocker | White Noise Generator | Powerful Microphone Suppressor Device | Prevent Voice Recording | BDA-3 (FCC, CE & ICES

VT4 Anti-recording device Audio Recording Blocker white noise to prevent 2-3m [VT4] - $145.00 : KAD TECHNOLOGY CO.,LIMITED

Anti-Recording Device Audio Recording Blocker White Noise to Prevent 1-2m - China Voice Recorder Blocker, Sound Record Blocker

【Ultrasonic Interception of Sound Source】: Anti recording interceptor 360° four sided interception, 12 transmitter head, can interfere with voice

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Upgraded Ultrasonic Anti-recording Device Audio Recording Blocker White Noise To Prevent Eavesdropping

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