... for all channels4. Support phantoplex operation: live, record, playback, backup, network transmission,, mobile phone surveillance5 ... Picture Division1/4/8/16Digital Zoom, PIPsupportTriplex operationLive, Record, Network,, Playback, Backup, Mobile phone surveillanceDisplay ... hard disk, USB Writer ,NetworkRecording file PlaySpecial player, Support AVI file format conversionAlarm input/output16 channels ...