* 4ch Video/Audio input, using the air plug for video input and output;
* H.264 DVR, support D1 resolution;
* Support independent dual-stream transport, support Independent dual-stream record;
* Support HDD, USB, IE network backup;
* Built-in 2.5” HDD, with vibration reduction function;
* Support GPS model(optional);
* Support 3G or Wifi model(Optional);
* Six pieces independent traffic recorder connector, one of them could be used for measure speed;
* 4ch Alarm input, 2ch Alarm output;
* Support alarm picture capture;
* Power supply input DC6~36V;
* Independent DC12V/5V power output;
* Design with no vents.