This is a pair of mini 1 channel passive video transceiver. Cost-effective point-to-point transmission.It can easily transmit and receive the video signals. It can be used for CCTV Camera, BNC, Cat5 UTP and so on. 1. Single channel passive Video Balun. 2. Full-motion CCTV video at distances up to 600m when used with any passive transceiver. 3. Video transmission via UTP CAT5 cable. 4. Receiving and transmitting video signals over UTP cable without using the power supply. 5. Up to 3,000 ft ( 1km ) with any active UTP video receiver. 6. The CCTV Passive Video Balun supports all video device, such as camera, monitor, DVR card and recorder etc. 7. No power required. 8. The Video Transceiver is easy to install, using the standard UTP cable system. 9. Connectors: Male BNC and terminal blocks. 10. Size: 4.5 x 1.4 x 1.5cm