7channels 700mW wireless AV transmitter/receiver system FOX-700 Transmit power:700mW Frequency:0.9G/1.2G/1.3G Demension:48*45*19mm weight:72g Channel:7CH AV frequency in-phase Unobstructive Effective Range:1~2 KM Package:12CH receiver,transmitter,2antennas,TX cable,AV cable Unit price:US 67.10