Spy microphone in a USB key

8 GB USB key with integrated spy microphone. Recording capacity of more than 70 hours, high quality sound and guaranteed autonomy.

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Spy microphone and GPS tracker for discreet surveillance work Memory Not included

Lawmate AR-100 secret voice recorder hidden in a remote car key

All Types of Band Voice spy Recorder Device in Pakistan

spy gadgets - GITO Spy Mini Camera Hidden USB Camera U Disk Hidden Video Recorder Manufacturer from Pune

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How to Hide a Spy Voice Recorder – SpyTechStop

Pi Spy Audio Recorder - part 1 - element14 Community

Eavesdrop from a Distance with This DIY Parabolic 'Spy' Microphone « Hacks, Mods & Circuitry :: Gadget Hacks