AKK 5.8G TS832 FPV Wireless AV Transmitter Double LED display for FPV Racing Drone It supports full range of 40 channels including raceband 40 channels, cover A, b, E ,F, r bands,Push button to change channels and frequencies Super small 220mA current for 600mW AV transmitter power Connector: VTX side RP-SMA jack, antenna RP-SMA plug Easy to use 2 buttons and 2 LED display to change channels and frequencies conveniently