Built in on board IC preamp, low noise, high gain and auto level adjustment
Pick up every sound with this super high gain micro audio system. This microphone is compatible with devices that accept AV input, like TV, VCR, DVR
Preamplifier used to increase a microphone’s low output voltage to a stronger usable level
Super high gain mini microphones capturing audio evidence
Package included: 1 x preamp microphone, 1 x 12V DC 500mA power supply and 50ft extension cable