K031B

Microphone
Type: Condenser
Impedance: 1-1.9KΩ
Sensitivity: -44±2dB RL=680Ω Vs=1.5V (1KHz 0dB=1V/Pa)
Frequency Response: 50-16KHz
Direction: Uni-direction
S/N Ratio: More than 58dB
Transmitter
Frequency: 672.5-684.5 MHz
Radio-Frequency Power: 10dBM/10MV
On-off Control: Physical Switch
Power Supply: 2*AA Batteries
Receiver
Frequency: 672.5-684.5 MHz
Sensitivity: -95db
S/N Ratio: More than 58dB
Frequency Response: 40Hz-15KHz
Power Supply:USB,5V