High Quality 3km Range Only 6g Av Sender Aomway Small Size 26*20*8mm Light Weight: 6g (Not Including Antenna). Stereo, Left and Right Channel Independent Transmission. All Standard PAL / Ntsc. Input Voltage Range Dc6-24v. Equipped with a 5db Antenna.tx The lightest video transmitting, 32 CH points. 5.8G broadband FM synchronization of audio and video transmission High emission power 200MW 23db. Built in four frequency selectable 5740-5860MHz / 5705-5925MHz.5725-5865MHZ/5733-5866MHZ 32 transmit channel