GW Security 16 Channel H.264 HDMI 960H DVR Realtime CCTV Network Surveillance with 2TB Hard Drive, Quick QR-Code Scan iPhone, Android Viewing, USB Backup Pre-installed 2TB Hard Drive. FREE 1 Year Warranty and FREE Life Time Tech Support within U.S.A 16 Channel Full 960H Real-time Recording H.264 video compression format; Supports VGA and HDMI (Maximum HD 1080p) output for better resolution Multiple operation modes (Preview, record, playback, backup, network surveillance and Mobile monitoring) Internet (PC,Mac) & Smartphone Monitoring Anytime&Anywhere,Remote Access and Control Setting up is so easy! Simply download the smartphone App and scan the DVR QR code