Night Owl Security 8 Channel Smart HD Video Security System with 1 TB HDD and 4 x 720p HD Cameras 8 Channel 720p AHD DVR with pre-installed 1TB hard drive 4 x Indoor/Outdoor Hi-Definition 720p bullet cameras with Wide Viewing Angle Cameras with night vision up to 100 ft. No re-wiring required, use your existing analog cables Backwards Compatible- Compatible with both Night Owl HD analog and industry standard analog BNC cameras View & Playback footage directly from your Smart Device