SWANN DIY 4 CAMERA HD SECURITY SYSTEM An advanced & easy to use surveillance system with 720p high definition video to see & protect your premises. Set & forget by recording from 4 channels for 105 days+ onto a 500GB hard drive. Seeing is believing with 4 x 720p (1 Megapixel) HD cameras offering 65ft/20m infrared night vision & durable construction for indoors or outdoors. 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. Surveillance in the palm of your hand with live viewing on Smartphone & tablets including iPhones, iPads & Android devices using the free SwannView Link app. Cut the cost of crime & know what?s happening with this expandable HD security system to suit front & back doorways, yards, homes & small businesses.