LaView 4 Camera Security System, D1 RealTime 4 Channel DVR w/500GB HDD and 4 Bullet 520TVL Day and Night Indoor/Outdoor Surveillance Kit DVR provides clear image quality with full D1 Real-time recording Great for day and night, indoor or outdoor use with IP66 weatherproof housing Comes with 4 high resolution 520TVL bullet surveillance cameras and view area with 3.6mm Fixed Lense Free LaView apps for live view and playback on Smartphone devices Connect to VGA, BNC, or HDHI monitor for higher resolution options