Specification:
Microphone type : Cardioid directional electret microphone
Frequency response : 70Hz~12KHz
Sensitivity : -33±1.5dB (0dB=1V/Pa,at 1KHz)
Max SPL : 100dB(THD>3%)
Maximum power consumption : 3W
Power supply : 18650 lithium battery
Sign-in function : Touch screen sign in
Display screen : IPS screen
Battery capacity : 9600mAh
Microphone pole : 220mm
Working hour in speech & mixed mode : 13-14 hours
