CCTV Surveillance Microphone for Security System Small High Sensitivity(CM20)

Features:

Using left and right channel output, Micro-chip design, High fidelity.
Power polarity protection circuit
Voltage:  9-12VDC, Electric current: 20mA
Output impedance:  600 ohm non equilibrium
Pickup range:  5~50m²
Weight: 26g, Size:43mm*22mm*10mm