... high compression, support dual stream network transmission.Support Wifi and IR extend to 5~25MSupport CIF realtime and ... ,FTP,DNS,DDNS,NTP,UPNP,EMAIL,Alarm Server,ARSP,Wifi,3G.Support backup & upgrade with USB flash disk ... ,FTP,DNS,DDNS,NTP,UPNP,EMAIL,Alarm Server,ARSP,Wifi,3G IE Remote PreviewIE(need Manual Installation), NetView, ... ×255mm×55mm(W×D×H)Weight2.83KG(without HDD) Support Wifi and IR 8CH DVR