Use 2.4GHz ISM frequency band. 350 m transmission range without any holdback. Support DVD, DVR, IPTV, CCTV Camera, Satellite receiver, Digital STB and other AV output devices. 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.