... Network transmission, and playback simultaneously 2. Support dual-stream transmission for all channels3. Support multiplex operation: live, record, playback, backup ... , network transmission, mobile phone surveillance4. Support backup with USB Flash Disk, Movable hard disk, USB ... remarkSupportNetwork port and Protocol1 RJ-45 10/100M,support TCP/IP,PPPOE,DHCP,DNS,DDNS,UPNP,NTPIE ...