... alarm email&DDNS function. 3)It support 8CH playbac 4/8/16ch standalone h.264 dvr♦Hisilicon 3515 chipset, ... , event searching, urgent searching♦Support fast forward and rewind: x2, x4, x8♦Back up modes: network backup, USB back ... channel, backup, networkEvent ModesAlarm trigger, motion detection triggerHigh Playback Speed2,4,6 multiplier , single frame playbackPlayback SearchingDate & time search, event ...