Vehicle Blackbox DVR With Rear View Camera

Short press the up key to switch camera, short press the mode key to lock file. 21. Use the buck line to not occupy the cigarette lighter interface. First, connect the negative pole(black line) of the buck line to the ground of the car fuse box;Secondly, if you want to continue monitoring after parking (the DVR works 24 hours), connect the positive pole(red line) of the buck line to the BAT interface of the car fuse box; If you want to stop monitoring after parking (the DVR does not work after parking), connect the positive pole of the buck line to the fuse box ACC interface