... Transmitter*Transmit Power:1500mW. *Frequency:1.4G/1.5G/1.6G.*Dimension:73*41*14 mm.* ... V frequency in-phase. *No obstructive Effective Range:1 ~ 3KM. *Package:12channels receiver, transmitter, 2antennas ... camera, car camera, standalone DVR, all in one LCD combo DVR, car DVR, DVR card, CCTV KIT, Wireless surveillance ... company :ELP-CCTV camera ELP-DVR : 1.5G/12CH/1500mW wireless AV transmitter and ...