ZOSI 8CH 720P AHD DVR with 4pcs 720P 1200TVL HD Outdoor Metal Housing Weatherproof CCTV Security Camera System NO Included Hard Disk -100feet Night Vision -IR Cut Built in -Quick Remote Access H.264 8Channel 720P AHD DVR with 4 High Definition 1.0 Megapixel 1280 TVL (720P) Heavy-Duty Metal IP67 indoor/outdoor weatherproof Cameras.***NO Include Hard Disk***you need to install Hard Disk for record &Playback. DVR Equiped with HDMI/VGA/BNC port for multi video output, 720P Recording Resolution. HDMI Port for 1080P High Resolution Viewing.Record & Playback 8CH 720P @ 15FPS. Support USB port Back up , gives you the easiest option of backing up and transferring your video footage to a USB flash drive Email Notification & Mobile Push Alerts when Motion Detection,Free ZOSIVIEW Apps for Live View and Playback on Smartphone ( iPhone, iPad and Android devices ) Two year quality Warranty, Life time Tech Support ! If your product stops working in the first year we will replace it.