Overall System:

Frequency Control : PLL synthesized function
Operating Frequency : 520MHz - 820MHz (adjustable)
Modulation Mode : FM
Maximum Deviation : +/-5kHz
Frequency Response : 80Hz - 15kHz (+/-3dB)
Total Harmonic Distortion : <=1%
Operating Temperature Range: 10C - 40C

Recevier:
Sensitivity : 12dBV (80dB S/N)
Sensitivity Range : 12~32dBV
Resonance Interference Ratio : >=75dB
Audio Output : Balanced
Output: 0 ~ 0.5V/600 Ohm
Audio Output: 0~0.5V/5K Ohm
Power Supply : 12 ~ 16V DC
Current Consumption : 300mA

Two hands wireless microphones