4 CH TVI / CVI / AHD video input 4 CH DVR support 1080P lite / 720P / WD1 recording 4 CH DVRs support 1 CH IPC 1080P / 960P / 720P recording Adopt standard H.264 high profile compression format to get high-quality video at much lower bit rate Intuitive and user-friendly Graphics User Interface ( GUI ), window style operation by mouse Multi-mode recording: manual / timer / motion Playback : 4 CH simultaneously playback Search: time slice, time, event ( manual, motion ), tag search Express and flexible backup via USB, network and so on Pentaplex: preview, record, playback, backup and remote access DHCP, DDNS, PPPoE network protocol, IE browse and CMS supported Remote control via IE or CMS : preview, playback, backup, PTZ and configuration Dual stream technology for local storage with high definition, remote network transmission and remote surveillance with mobile device Multi-user online simultaneously Authorization management, log review and device status review HDMI 1080P output, true high resolution display Support PTZ preset and auto cruise, up to 255 presets and 8 cruises Support NAT function and QRCode scanning by mobile phone and PAD Powerful smart phone & Pad surveillance with iOS and Andriod OS