Compatible with CVI, TVI, CVBS and AHD video devices, Fit for 720P/960P/1080P Max.2MP CCTV Cameras, monitor, DVR card and recorder etc.LED indicate green light is working model , yellow light does not working. Video transmission Via UTP CAT5/CAT6. Interface RJ45+DC+BNC+RCA (Audio) Interface.Video transmission Via UTP CAT5.HD-CVI / TVI / AHD/ CVBS Passive Video & Audio Connector & Power Balun. Easy installation, using the standard UTP cable system and low voltage power supply;the longest run color was about 1000 feet HD transmitter.Green lighting is working model , yellow lighting not working.Transmission distance: 720P CVI/AHD / CVBS Max.984ft ; 1080P CVI/TVI/AHD Max. 656ft.Colour: blackMaterial: plasticPackage Contents:8 Pair x Passive Video Power Balun Audio ConnectorOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.