DVR:. 500GB Seagate SV35 HDD (expandable to 2TB) . Resolution up to 1920 x 1080 pixels . Recorded videos can be easily viewed in high definition by connecting the DVR to a TV, monitor, or VGA/HDMI display. Pentaplex operation allows you to view, record, playback, backup & remotely control the system simultaneously . Videos can be remotely viewed on smartphones based on the Windows Mobile, Symbian, Blackberry, iPhone, and Android platforms, as well as on the Firefox and Internet Explorer browsers . H.264 compression helps reduce video file sizes without compromising on the quality and integrity of images . Recordings can be continuous (24/7), scheduled, or can be set to begin on motion detection or alarm detection . Cameras:. 1/3" SONY CCD sensor . 4mm focus-free fixed lens that offers wide-angle viewing . Weatherized vandal-resistant compact housing . Night-vision range - 15m . Infrared switching automatically switches the camera between color and B&W modes as per changes in ambient lighting . adjustable bracket allows it to be easily mounted on to a wall or ceiling . Supports NTSC and PAL video formats . Includes two 12V DC 1 AMP camera power supply transformers, 2 power supply splitters and four 100" BNC to BNC CCTV cables