CCTV Surveillance Microphone for Security System Small High Sensitivity(CM150)

Features:

Imported high fidelity, low noise processing chip and dedicated microphones,
Voice is pure clear, little noise.
High performance, suitable for large scale installation.
Used in banking, telecommunications, venue, counter, hall
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:  -40db
Signal to noise ratio:  60 db
Pointing to the features:  full directivity
Weight: 35g, Size:70mm*70mm*39mm