ZOSI 720P 8 Channel Video Surveillance DVR System with 4 Day & Night 720P AHD 1200TVL Security Camera 36 IR Leds 100ft night vision 1TB Hard Disk Pre-installed 8CH 720P AHD DVR, 4PCS 720P 1200TVL Outdoor Night/Day AHD Cameras With 1TB Hard Disk 720P Recording Resolution. HDMI Port for High Resolution Viewing,USB Backup Advaned Motion Detection,support multiple defense Zones Motion Detection,Full Scene Motion Detection QR Code Scan -- Easy & Quick Remote Access via smartphone and tablet Email Notification & Mobile Push Alerts when Motion Detection,Free Secu365 Apps for Live View and Playback on Smartphone Devices