CCTV Video Balun, ZOTER Camera Via CAT5 RJ45 Twisted Pair Video Power Audio Data Transceiver Adapter UTP (pack of 4) Made up of ABS Platic Passive (non-amplified) device that allows the transmission of real-time monochrome or color video over Unshielded Twisted-Pair (UTP) wire Hi-frequency signal to visualize high quality image. 60dB crosstalk and noise immunity Compact size and easy installation