Detail：
  　　
Technical Parameters
※ Audio Response: VHF720 ~ 880MHz
※ FM mode: FM
※ Frequency Stability: ± 0.005%
※ Maximum Deviation: ± 25KHz
※ Audio Frequency Response: 40Hz ~ 20KHz ± 3dB
※ SNR:> 90db
※ sensitivity: the offset is equal to 25KHz,
      When you enter 6dBμV, S / N> 60dB
※ Distortion: <0.5%@400Hz
※ Dynamic range:> 80dB
※ receive channel: two-way
※ Working temperature: -10 ℃ ~ 50 ℃
※ Receiver Power Supply: AC220V / 50-60Hz
※ hand microphone (clip) Battery: 3V
※ Working distance: 80 meters (depending on climate change)