Swann SWDVK-8325N4-US DVR8-3250 8 Channel 960H Digital Video Recorder and 4 x PRO-615 Cameras (Black) View from up to 8 cameras simultaneously during the day, night, indoors or outdoors Set & forget by adding an internal SATA Hard Drive (up to 3TB) of your choice# for continuous recording from up to 8 channels Includes 4 all-weather, high resolution 650TVL cameras with powerful night vision to 82ft/25m. Upgrade by adding 4 more cameras (like the Pro Security Day/Night Cameras) of your choice Connect to the internet in seconds with the latest SwannLink encrypted Peer-to-Peer technology - just scan the DVRs 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 Link app