Andoer RC732-DVR All-in-one 7in 800480 HD LCD FPV Monitor Built-in Battery and 32CH 5.8G Wireless Diversity Receiver Built-in diversity wireless receiver. Built-in wireless recieve output. Could receive 2CH RF singal at the same time. Use 5.8GHz ISM frequencyband. 4 Frequency set, 32 channels.