5.8G 32CH FPV Wireless Av Receiver W/ Led Channel Display Rc832 for RX Two digits display: one for CH and the other for FR, real-time positioning which frequency band and which channel received; 600mW transmitter power 3.5KM distance in open area 32 channels: Cover A, B, E bands and F band (Airwave band), 4 bands and all frequencies compatible