Swann Security Camera System, 4 Channel High Resolution DVR with 2 x 960H Weatherproof Aluminum Surveillance Cameras, Motion Detection Day/Night, HDMI & VGA Output, Smartphone Viewing (SWDVK-4ALP12) Includes 2 all-weather, high resolution 650TVL cameras with powerful night vision to 66ft/20m. Add 2 more cameras for full 4 channel monitoring Set & forget by recording continuously from 4 cameras for 30 days+ onto a massive 500GB hard drive with motion detection. Save time & have peace of mind by easily locating incident video, then transfer to USB flash drive Connect to the internet in seconds with the latest SwannLink encrypted 'Peer-to-Peer' technology - just scan the DVR's unique QR Code Surveillance in the palm of your hand with live viewing on 3G/4G-enabled Smartphone & tablets including, iPhone, iPad, Android devices and more* using the free SwannView Plus app