Keep your family and property safe with this high-tech surveillance system Surveillance system includes built-in DVR recorder and four cameras Large 15-inch screen allows you to view from four camera angles at once 250GB hard drive for massive storage capacity Optional mobile phone or PDA remote viewing at a flat rate USB 2.0 back-up and remote control system 15-inch TFT color LCD screen Built-in 4 channel DVR with HDD Triplex Recording Records from four cameras simultaneously Easy do-it-yourself installation with plug and play connections Video output connects to any TV or video monitor MJPEG digital compression provides exceptional picture quality Three different recording modes: schedule, event or motion triggered Built-in motion playback (2x, 4x, 8x, 16x, 32x) On-screen programming with remote control Emergency back-up battery protects settings Alarm, repeat and timer options Remote viewer software allows access to the DVR from remote location to view live and recorded video Internet ready Camera input is RJ11 Input connection with cameras supports NTSC and PAL Cameras work day and night Each camera has 100-foot cord Model number ASLCD1504