100mw wireless video/audio transmitter system. Transmission frequency:100mW. Working Frequency arrange:1.5G/2.4G Channel choice: seven channels, synchronization of audio and video. Transmit distance: (No obstacle) 100-300M. Working Volt: transmitter DC 12V; receiver DC 12V. Working Current:250mA Included sets:12 channels receiver, transmitter, two small antennas, transmitter connecting lines, vedio /audo connection lines. Color: blue working temperature: -10° ~ +50° Transmitter size: 50*26*8 mm receiver size: 115*60*21 Transmitter weight: 41g + 154g