I am weaker than I thought. Because the price was cheap, there was no choice. It can be used if it is a little air supplement. It is a troublesome surprise as it is a method of taking power from the battery. Also, since packing is easy to break after taking out with plastic, it will not get together unless you put it in another container. Manufacturers should also sell a little more kindly. Their explanation is also unkind.
It is more noisy than I imagined, moving around with vibration. But it is cheap, and the function plays well. As soon as the tire of the scooter enters the air, because the discharge volume is small, it seems that it will take some time for the car to be unimaginable. But there is not a loss if you think about the price, because it is different depending on whether it is or not. When purchasing with an air filling image of a gas station, it is quite a beat.