CCTV Surveillance Microphone for Security System Small High Sensitivity(CM101W)

Features:

High-Quality Series CCTV Microphones

Special imported microphones. Directional logic dolby surround sound system, imported high-speed voice processing chip. Rainproof.
Automatic gain control (AGC) circuit.
Using Israel high-fidelity / low noise processing chips, clear voice, low noise
Power polarity protection circuit, built-in surge protector
Pickup range:  10~100m²
Transmission distance:  up to 3000 meters
Working voltage:  12 V DC regulated power, Electric current: 20mA
Frequency response:  20 Hz to 20 KHz
Sensitivity Reduction:  -40db
Signal to noise ratio:  60 db
Weight: 142g, Size:80mm*63mm*57mm