... transmitter,with high output power,the transmssion range is 6000m in open fields. 1.2Ghz 4 Ways 3000mW Wireless AV Transmitter ... high. E.Transmitter uses 12V/3A power,and camera must use another power 12V/800mA. Package Including:12 channel Receiver, transmitter, ... small antennas, AV cables, transmitter's power apdapter included.