... ; Steady System Function;4. Playback, video, network transmission, mobile browsing, and backup etc. work simultaneously;5. Access to ... mouse, 1 USB2.0 for backupBackup DeviceUSB2.0 U disk/Network download /USB DVD-RWPTZ Control SupportAlarm input/outputNot ... DHCP , DDNSIE Remote Preview1/4/8/16 channels preview simultaneously Mobile phone live viewsupport(Iphone, Android, Symbian, Blackberry, WM, etc ...