CCTV Surveillance Microphone for Security System Small High Sensitivity(CM130)

Features:

High-Quality Series CCTV Microphone

Special imported microphones. Directional logic dolby surround sound system, imported high-speed voice processing chip
Automatic gain control (AGC) circuit.
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:  -30db
Signal to noise ratio:  85 db
Weight: 56g, Size:53mm*53mm*24mm