... ,Symbian, Android) Multiplex operation : Preview, recording, playback, backup, network live, mobile phone view; all operations are independent ... fast back play, manual and single-frame play. Many backup device: USB flash disk, USB portable HDD and network. ... 2M/day*channelVideo storageLocal HDD ,NetworkBack up modeNetwork backup,USB portable HDD,USB DVD-RWInterfaceVideo input16CH BNCVideo output1CH ...