? Model No. SWDVK-434254S-US;? 960H DVR with widescreen high-resolution live video viewing & playback;? Perfect for 16:9 monitors;? Includes 4 clear-resolution 720TVL cameras with powerful night vision up to 82ft;? Weatherproof (IP67) for indoor/outdoor use;? Records continuously from 4 channels for 30 days onto a 500GB hard drive or even longer with motion detection;? External hard drive connected to eSATA port provides extra capacity;? Easily locates incident videos & transfers to USB flash drive;? Connects to the internet & smartphones in minutes with SwannLink(TM) "Peer-to-Peer" technology;? Accessible via 3G-/4G-capable smartphones & tablets with the free SwannView Link app / ONE YEAR