Swann HD (1280 x 720) Security System, 4 Channel DVR with 4 x High Definition 1MP Pro-A850 Weatherproof Aluminum Surveillance Cameras, Motion Detection day/night, HDMI & VGA output, Smartphone Viewing (SWDVK-444004) A state of the art surveillance system with video technology equivalent to 720p HD resolution Set & forget by recording continuously from 4 channels for 30 days+ onto a 500GB hard drive, even longer with motion detection Seeing is believing with 4 x 720p HD Cameras (1 Megapixel) perfect for front & back door areas & more Save time & have peace of mind by easily locating incident video, then transfer to external storage via USB or network View live or playback video in high definition on your HDTV, LCD screen or monitor via HDMI connection or VGA port