... transmission, mobile phone surveillance5. Support backup with USB Flash Disk, Movable hard disk, USB writer, Network 6. Support 1channel. Main output ... playback simultaneously(Optional playback channel)Recording BackupUSB,Moved Hard Disk,USB Writer,NetworkNetwork transmission8Channels real-time Network transmission ... IP,PPPOE,DHCP,DNS,DDNS,NTP,UPNPIE BrowserWindows XP/Vista/Win 7/Mac OS,IE6.0-9.0/ ...