Mini Microphone High Sensitive Pickup Audio Mic for CCTV Security Camera DVR Sound

Features: This security microphone for CCTV security camera is compatible with devices that accept AV input, like DVR, VCR, TV, etc. Used to increase a microphone s low output voltage to a stronger usable level. High Sensitivity Audio Sound Pick Up. Sensitivity adjustable. Low noise, high fidelity. Wide monitoring range of about 10 50 square meter. Specifications: Color: Black Material: Plastic Voltage: DC 9 12V Current: 15mA Output Impedance: 600ohm Monitoring Range: 10 50 Square Meter Connector: Red (DC12V Input), Black (DC12V Output), White (RCA) Cable Length: About 42cm Package Weight: About 29g Package List: 1 * Audio Pickup Device (Other items in the pictures are not included.).