VideoSecu 1 Pair Video Balun Network Transceiver with Video Audio Power Connectors 1EK Transmits audio, video and power over a single cable Sends video up to 1,000 feet via inexpensive cat. 5 twisted pair cable Better EMI and RFI interference rejection than coaxial cable Come in pair, one for camera, and one for DVR Lower cable cost: The cost of baluns plus Cat. 5 cable may less than traditional wire. Especially for high cost Plenum Coax cables