User's Manual

4. SD
The quality of SD card has a great impact on the stability of video recording.
To record video safely, use SD cards from major brands such as SanDisk,
Kingston, Toshiba, and Samsung. Speed certification must be at least Class10.
5, Aux audio cable connection
As shown in the figure, the aux cable connects the DVR with the aux port of the car
audio:
Enter the aux line: it can emit the sound of the equipment, receive it with the original
car radio, and play it
It enjoys the level of the original car through the horn of the original car. When you
connect the aux cable, the display will no longer make any sound.