Features
• Frequency Range: UHF frequency (Channel A and Channel B)
• Use 24Bit/48KHz high performance audio special A/D and D/A processor
• Use ID code + frequency for frequency match encryption. (Although two receivers are using the same frequency, the receiving chip is interfered by RF signal. It only will affect the working distance, it will not cause noise.)
• Has auto mute and impact eliminating circuit, to avoid impact and noise while turn on/off the unit.

Technical Specification
• Frequency Range: Frequency
• Fixed frequency point:
Single channel: 661.85mhz
Dual channel: 661.85mhz 630.65mhz
• Oscillation Mode: DSP chip frequency lock.
• Frequency Stability: Upto 10ppm
• Frequency Power: 10dBm
• Frequency Response: 40-18KHz
• Distortion:  0.5%
• Battery: 1.5V/AA Size
• Working Hours: 4~8 hours.

Receiver Specification
• Frequency Range: Frequency
• Fixed frequency point: 
Single channel: 661.85 mkz
Dual channel: 661.85mhz 630.65mhz
• Oscillation Mode: DSP chip frequency lock.
• Frequency Stability: Upto 10ppm
• Receiving Sensitivity: -95-71dBm
• Frequency Response: 40~18KHz
• S/N:  90Db
• Audio Output: 300mv (max)