Night Owl Security AHD7-841 8 Channel Smart Video System with 1 TB HDD and 4x720p HD Cameras (Black) 8 Channel 720p AHD DVR with pre-installed 1TB hard drive 4 x Indoor/Outdoor Hi-Definition 720p bullet cameras Wide Viewing Angle Cameras with night vision up to 100 ft. No re-wiring required, use your existing analog cables and Backwards Compatible- Compatible with both Night Owl HD analog and industry standard analog BNC cameras View & Playback footage directly from your Smart Device and US Based 24/7 - 365 days a year Technical Phone & Web Support