Swann SWDVK-425504 S 4-Channel Digital Video Recorder with Smartphone Viewing and 4 x 600TVL Cameras (Discontinued by Manufacturer) Internet-ready protection for your home or business 24/7 Includes 4 all-weather, high resolution 600TVL cameras with powerful night vision to 65ft / 20m Set and forget by recording continuously from 4 cameras for 120 days+ onto a massive 500GB hard drive, longer with motion detection Surveillance in the palm of your hand with live viewing on 3G enabled Smartphones including iPhone, iPad, Remote viewing is easier than ever to set up with UPnP (Universal Plug n Play) auto network configuration