A dash cam is a machine for recording the image and sounds during driving. After installing, it has the ability to record videos and sounds of the whole driving, can provide the evidence for the traffic accident. If you like self-driving, you can use it to record the process of conquering difficulties and obstacles.

It is recording as you are driving, recording the time, speed, position on video, quite “black box”. it can also be used at home to shot the life fun or as a home monitoring, also be a parking monitoring. 

With the improvement of the people’s living standards, we gradually choose the car to go outside, and the dual lens dash cam becomes more and more popular because it can play a lot of roles and rich function, which is an indispensable part of the car. So what determines the performance of the dash cam. 

Firs, the most important hardware is the main control chip that is the program of the dash cam. The chip is mainly done by several large companies, using in 4k dash cam. 

The Second is the PCB board that is a board without components on it and divided into 10 / 8 / 6 / 4 / 2  laminates.the more layers the PCB board is better, of course, the more layers are more expensive, if it is more than six layers of motherboard and the components can be broken, it can be re-welded. But the four or two layers of the plate broken, it is basic not to use. 

The third is the small element on the master leaf that is about four hundred. It includes capacitance, resistance, inductance and so on, which are produced from the different manufacturer, so the quality and the price is different. But the low-end or the false dash cam, it is easy to jerry-cut, resulting in the performance of the dash cam unstable, even crash. 

Of course, the above points are very difficult to distinguish in our actual purchase. So we quickly press the button to detect whether the performance of the hidden dash cam is stable, whether the machine’s response is sensitive, whether there will be a crash.