This 8 Channel 5MP Lite 4-in-1 DVR supports analog, HD-TVI, CVI, and AHD cameras, allowing for the addition of up to 8 cameras with 720P or 1080P resolution. It features customizable advanced motion detection, sending smart notifications with images to your smartphone via the ZOSI VIEW app for remote and local playback. View your cameras from anywhere anytime with the free ZOSI VIEW app, compatible with iPhone, Android, and iPad. This system does not include cameras or a hard drive; a 3.5 inch SATA 500GB to 2TB hard drive is necessary. The DVR can be set to automatically overwrite the oldest footage or transfer files via USB. It comes with a two-year quality warranty and lifetime tech support. Manufacturer: ANSJER ELECTRONICS CO.,LTD