Boscam 5.8G 5km 2000mw Wireless Audio Video Receiver Transmitter Sender Kit for FPV RC Plane First Person View Video 5.8Ghz 2000mw Video AV TX RX Transmitter Receiver for Vehicle and FPV Digital phase-locked loop circuit, no channel drift issues 8 Selectable channels Working voltage: 7V-15V (12V normal) Working frequencies: CH1:5705 - CH2:5685 - CH3:5665 - CH4:5645 - CH5:5885 - CH6:5905 - CH7:5925 - CH8:5945