About this product:1) Power source: AC110V/220V, DC12V (built-in rechargeable battery)
2) Output power: max. 60W, less than 5%
3) Frequency range: VHF160-270MHz
4) Sensitivity: 10dB
5) S/N: over 60dB
6) Oscillator: ±0.005% quartz control phase locked
7) Wireless effective range: 30-50m
8) A receiver with a transmitter, a lavalier and a headset with ECHO
