What is the quality of Hanyuan emergency start-up power supply?

I think the quality of Hanyuan emergency start-up power supply is quite good.

1. is the first lithium battery for automobile emergency start, and has its own patent.

2. Its characteristic function is to start the car when the car is out of power or unable to start for other reasons.

3. It combines the functions of air pump, emergency power supply and outdoor lighting.