4Channel video + 4Channel Audio recording synchronously
Support 4*720P(1280*720),4*D1(704*576),4*HD1(704*288), 4*CIF（352*288）；Each channel is individually adjustable.
0-7 levels, 0 is the highest level.
Overlays information such as date time and vehicle ID
Support SD card loop recording, loop cover previous video
Timed recording, alarm trigger recording and manual recording
Support 1 channel and 4 channels preview. Support enlarge video image when alarm trigger and video rear view trigger
Space pre-allocated Support disks overwritten function.
Video Search: Search video files anytime per day, type(n/a)
Support 1 to 4 channels playback. Support forward and backward play at the speed of: x2 ,x4,x8,x16. Support alarm spot search and time search
Setup system parameters with the remote control
8 channels electrical level alarm input for optional Alarm linkage recording\Active request the intercom\One-key phone calling functions,etc
Max support 2ch level output
Built-in GPS/BD module: can sync record GPS information, trace replay
Support Pelco-D protocol 485 PTZ remote/local control,preset
Support LED Advertisement Panel\Oil Sensor\POS\Bus Station Broadcaster\Car OBD,ect.external devices
G-sensor,Record vehicle real-time status
TTS Voice Broadcast
Support TTS voice broadcast function
Can expand WIFI module,support 801.2b/g/n, 801.2a/c Built-in EVDO/WCDMA/TD-LTE/FDD-LTE,etc, 3G/4G module
System delay-time power on/off
DVR special file recording System Technology,Exclusive car record file system,space pre-allocate,4ch single file Record,cyclic covering；To avoid the storage of the media causes file fragments, with high reliability and high stability