The product is a Microphone Sound Monitor for CCTV Security Camera. Audio ground wire and power supply negative pole are combined. It must be connected to both the negative pole of dc stabilized voltage power supply and the ground wire of audio equipment audio input terminal. Mini Microphone for long transmission distance. Using the implementation audio synchronization with the camera. Red Wire: Power, Black Wire: Ground, White Wire: audio.High Fidelity Voice Clears, High Quality
High Quality High Fidelity Voice Clears, High Quality Audio monitoring range: 5-150 square meter, volume adjustable
Voltage: 6 V to 12 V · Frequency: 100-5500Hz Bug range: 5 - 50 sq. meters. · This microphone is compatible with devices AV input, like TV, VCR, DVR. · Long lasting CCTV Camera Microphone
In-Built on board IC preamp, high gain with auto level adjustment · Fit for almost any CCTV application
Very good mic Good voice coverage