Astak DVR Security Surveillance System with 250 GB Hard Drive and 4 Weatherproof Cameras with Night Vision 4 Channel MPEG4 DVR system with 250GB hard drive and 4 weatherproof night vision color cameras With VGA out (connect to monitor) and Video out (connect to TV) Triplex Mode: Live View/Record/Playback With internet monitoring function Manual/Alarm/ Schedule recording mode & recording speed option Built-in USB port for data backup User friendly interface Efficient search by time & event list Motion detection function System includes 4 weatherproof night vision security color cameras ( with 12 IR LEDs, night vision range: 25 feet)