SPECIFICATION
UHF 600-952MHz frequency range (region dependant)
Digital wireless audio transmission
48KHz audio sampling mode
Pre-set 16 selectable frequencies
Digital ID code, completely solves frequency interference
IR sync downloading the frequency from receiver
Lithium battery power supply
Portable plug-on receiver, plug in the mixer or active speaker directly 
Up to 60m line-of-sight operating range

RECEIVER 

Frequency range: 660-690MHz (region dependant) 

Frequency: Pre-set 16 selectable channels 
Modulation mode:  pi/4 DQPSK
Latency: <6ms
Sampling: 48KHz
Frequency response: 60Hz - 15KHz ± 2dB
Total Harmonic Distortion: <0.8%(1KHz)
Signal/noise ratio: >92dB  
Receiving sensitivity: -92dBm
Output: 6.35mm plug
Power supply: 3.7V Lithium battery
Power consumption:  >6 hours continuously using
Dimensions: 185*20*10mm

TRANSMITTER 
Frequency range:660-690MHz (region dependant) 
Modulation mode: pi/4 DQPSK
Transmitter power: 10mW
Sensitivity: -47 db±2dB
Frequency change: IR synch 
Microphone type: Condenser
Microphone dimension: Φ14*5.0mm   
Power supply: 3.7V lithium battery
Power consumption:>6 hours continuously using
Dimension: 145*40*27mm