... DVR300 Series 4ch Network DVR/8ch DVR system 3.H.264 video compression Entry Level DVR400 ... ModelBL-DVR400-16C-F1Main ProcessorHigh Performance Embedded MicroprocessorOperating System Embedded LinuxSystem ResourceLive, Recording, Playback, Backup, ... DDNS, FTP, Email, AlarmAlarmVideo Loss, Motion Detect, Disk No Space, Disk Error, Video Cover, Local Alarm, Exterior Alarm3G Mobile Surveillanceiphone ...