... ch DVR&LCD all-in-one designed on Linux system Product Features:1 19” LCD All-in-one standalone DVR2 ... playback, backup, network transmission,, mobile phone surveillance5 Support backup with USB Flash Disk, Movable hard disk, USB writer, Network6 ... channels input, 4 channels outputPre-alarm Recoding10 SecondsAction with AlarmSupportEmail AlarmEMAIL Send pictures to the designated emailSPOT Alarm ...