If you are looking for a microphone for your IP CCTV cameras then look no further! This tiny but clear microphone can be discreetly added to a bullet camera under the hood to capture nearby sound. Featuring 12-volt in-line power, this device can be inserted smartly between the camera's trailing power cable and power supply. Features Add Audio to Any IP CCTV Camera This small microphone is designed to be used with IP CCTV cameras. What's in the box? 1x CCTV Bare Wire Microphone Description Technical Specification Cable length: ~38cmAutomatic Gain Control (AGC): YesPower supply: DC9V~12VSensitive area: 6~80m2Frequency range: 100~10kHzFrequency response: 2.5 dBGND: Power "-" and Signal GNDAudio out: 1× RCAPower in/out: ø 2.1mm (inner) x 5.5mm (outer)