The VC-SYS-4CH is a CCTV surveillance system for home and small offices use. Connect four cameras to DVR (digital Video Recorder), you can enjoy various function DVR provides. The Digital Video Recorder is for recording/retrieving video streams up to 4 channels at the same time. It adapts a digital image compression technology to compress the input channel video streams, and uses a HDD to record the compressed video stream.
