Features: 3-IN-1 FUNCTION3-in-1 transmitter, signal + power + audio can be transmitted at the same time, no additional power is needed. BNC cable to connector 8MP, built in transient protection. HD VIDEOIt supports 4K-8 million pixels, provides HD image, allows high-performance, real-time color or monochrome (B/N) CCTV video transmission over UTP cable. STABLE TRANSMISSIONTwisted pair, the video balun has good anti-interference performance, the transmission distance is about 300 meters, stable and fast transmission. EASY TO INSTALLIt adopts gold-plated copper core with excellent workmanship. Spring-loaded wiring ports, screw-free design, easy and quick installation. WIDE APPLICATIONSupports all video devices, it is suitable for camera, DVR card and recorder etc, can transmit PAL/NTSC/SECAM composite video signal. Specifications: Color: black Material: plastic+metal interface Transmission distance: about 300m Support pixels: 4K-8 million Size: (L x W) about 6.3 x 3.2cm/2.48 x 1.26inch Cable length: about 12cm/4.72inch Package Includes: 2pcs x Video balun Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.