Thriverline UFOFPV  FPV Transmitter Tower-type 5.8G 0/25mW/300mW Switchable 40CH for Professional Drone The Force Switchable FPV Transmitter make it easier Installation on flight control by the new installation position design One key to adjust power,Band,and Channel Connector:SMA Input voltage range: DC 7 -24V Long transmission distance, stable performance and low loss