This high quality mini microphone is easy to setup and ideal for use with CCTV cameras or other devices, for audio monitoring. it requires 0.5mA of 9 to 12V (volt) DC power to operate. It's physical size is small and is easy to hide in different locations around your home or office 

FEATURES -

Plug and play, great for listening in on conversations - Extremely sensitive, do not talk directly into microphone - 

Sensitivity: 200mA/ubar -

S/N Ratio: 58dB -

Frequency: 100~6000Hz -

Audio output: RCA female -

Work current: 0.5mA~60mA -

Work voltage: 9~12V DC

The Mic comes with 3 connections - white RCA phono socket for audio output, red 2.1mm DC socket for 6-12v power input and black 2.1mm DC output plug. the DC black output connector, means you can split the Power going to the camera and use it for the mic, saving on cabling costs.