Has all necessary items required for 3 channel CCTV installation apart from the monitor (not included). All items are of high quality and of a trusted brand worldwide!! Real-Time capture;You will be amazed by the stunning image quality of Hikvision. It’s like comparing the difference between a VHS video tape and a Blu-Ray movie, allowing you to see details and colours like never before.If an incident occurs you can transfer video files to back-up media via the easily accessible USB port or save to your network.Easy Installation;Installation and setup is easy, simply run the cable from the camera to the HD DVR and click the cables into place and you’re set. – It really is that easy. Getting Started Is A Breeze;Setting up the DVR for remote viewing has never been easier or faster with Hikvision's HD DVR software wizard guiding you through set-up and makes everyday use easier.Video/Audio Input Video Compression: H.264Analog and HD-TVI video input: 4-ch,BNC interface (1.0Vp-p, 75 Ω)Supported camera types: 720P25, 720P30, 720P50, 720P60, 1080P25, 1080P30, CVBSIP Video Input: 1-ch 1080PVideo Input Interface: BNC (1.0 Vp-p, 75Ω)Audio Compression: G.711uTwo-way Audio: 1-ch RCA(2.0Vp-p, 1kΩ)