Automatic electric ball pump The electric ball pump is designed with intelligent pressure detection and stop functions. Just set the correct ball PSI in advance and press it to start. Once the preset pressure is reached, it will automatically stop inflating. Intelligent and easy to use ^ Precise pressure calibration Built in digital pressure gauge and LCD display, you can preset a very precise PSI to inflate your ball, and then you can get the precise pressure level (PSI) in the ball. Without wasting time, it is easier to inflate. You can focus on the game instead of the ball. Quickly swipe the ball to free your hands and save your energy. Air input: 4L/M, it only takes 1-2 minutes to inflate a ball. These manual ball pumps do not require perspiration when pushed or pulled by hand. Save more energy to defeat the opponent ^ Portable compact design size: 6.29 * 1.57 * 1.57 inches, weight: 0.55LB, suitable for bags, boots and even pockets. Allows you to take this mini pump wherever you may need it to keep your ball inflated. Equipped with bright LED light and backlight LCD display, it is convenient to use the ball pump at night or in dark places. It is equipped with a large capacity battery electric ball pump. It is equipped with 2000mAh lithium battery, which can charge 30 balls at a time. It is equipped with a micro USB charging cable, which can be fully charged in about 120 minutes