Product Parameters：
Pick Distance: 50㎡
Audio Transmission Distance: 200 meters
Sensitivity: -24dB
Frequency Response: 20Hz ~ 20KHz
Directional Properties: Full Directivity
Signal to Noise Ratio: 58dB
Dynamic Range:74dB (1KHz at Max dB SPL)
Maximum Withstand Sound Pressure:110dB SPL (1KHz, THD 1%)
Output Impedance: 100 ohm nonequilibrium
Output Signal Amplitude: 2.5Vpp/81dBSPL
Microphone: Omnidirectional Microphone
Signal Processing Circuit: ANC environment noise cancellation technology
Protection Circuit: 8KV Air contact ESD, lightning protection, power polarity reverse protection.
Driving Capability: built-in pre amplifier circuit, which can directly drive headphones.
Connection Mode: 3 lead wires (power, audio, common ground)
Transmission Cable: 3 core 0.5mm, RVVP shielded cable
Power supply Voltage: DC regulated power supply DC 12V (9V--15V)
Power Supply Current:40mA
Working Environment Temperature: -25 C ~ 70 C
Color: White
Shell Material:ABS
Dimensions: 72.5mmX72mmX17mm