1, 4.3" Digital Mirror; 2, Car DVR black box; 3, Car Front, Side, Back Cameras; ... : one for montor, the other one for DVR or extra monitor;2, Four camer Video inputs to connector Front, ... till other acction is done. Then front viewand DVR rework after other acction till press front switch again ... Back-up CameraSpecial Features:1, DVR for Special use such as accident etc.;2, Other 170 Degree Mini CCD ...