Collect audio evidence as important as capturing video evidence, this preamp microphone cable is a perfect addition to any video security camera system. This high gain mini preamp and microphone is the best for CCTV professionals, with Preamplifier IC built on board, it increase a microphone's low output voltage to a stronger, more usable level, it features low noise, high gain and auto level adjustment on-board preamp circuit. This mini-size microphone is only 5mm in diameter, easily hidden. The cable is about 3.5FT long, might need audio extension cable for longer run (not included) to the DVR, and the microphone can capture audio within 10FT environment. A FREE 12V DC regulated power supply is included.
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