Input Devices Front panel USB mouse remote controller (Optional); Video Input 4CH Composite video 1.0Vp-p/75Ω NTSC/PAL; Video Output 1 CH Composite video output HDMI VGA; Audio 1 CH Input. 1 CH Output; Resolution Live: 720×576 25f/s(PAL). 720×480 30f/s(NTSC); Playback: 352×288 25f/s(PAL). 352×240 30f/s(NTSC); Network: Support DHCP FTP PPPOE 3G DDNSWeb browser CMS NetViewer Email. Build in free privacy DDNS; Mobile OS Windows mobile Symbian IOS Android Blackberry; Connecting Port USB x 2 SATA x 1 DC 12V RS485; Environment: Working Temperature : 0? ~ +55? Working Humidity: 10~90%