Use 2.4GHz ISM frequency band. 150 m transmission range without any holdback. Keep Transmitter and receiver setting at the same channel, it can support 1 transmitter and more receivers at the same time. Supports video transmission of PAL/ NTSC system and stereo audio transmission, Pictures received are clear, flamboyant and stable. Machine dimensions: 10 & 161, 8.5 & 161, 3.0 cm. Weight:0.7kg/sets
