... :45*38*12mm. *Channel:7CH AV frequency in-phase.*No obstructive Effective Range:100~300 meters.*Package:12CH receiver,transmitter,2antennas,TX cable ... ,AV cable.*Package:12CH receiver,transmitter,power supply ,2 antennas,AV cable 7CH 100mW Wireless AV Transmitter and receiver: ELP-WTR100 ...