Hi-Tech DVR Kit 4CH 960H D1 DVR and 4 X 700TVL Camera Security Surveillance System High Definition Video Camera System: Four 700TVL bullet camera(with 3.6mm lens) makes more Clear and stunning picture and video,Plus waterproof rate IP66, perfect for home security and outdoor use. Home Security Camera System: supports AHD-M series front-end real-time encoding, H.264(High Profile) decoding, VGA, HDMI, PTZ control; SATA ,Support hard drive up to 6T; but HDD not included Mobile monitoring : support various smartphone monitoringIOS, Androidand tablet PC remote viewing anytime anywhere. Night Vision and Motion Detection: 24 IR LEDs see up to 20 meters (about 65 feet) in darkness, combining with dvr monitor motion detect, safeguard residence and business security day and night Please note that HDD does not included.1 Year Warranty and Free Life Time Tech Support From Hi-Tech.