Automatic Electric Ball Pump The electric ball pump is equipped with intelligent pressure sensing and stop function, which can be accurate to 0.1 PSI. Just set the correct ball PSI, press the start button and once it reaches the preset pressure, it will automatically stop inflation. Smart and easy to use to make your life easier. Portable and compact design Size: 6.29 x 1.57 x 1.57 inches, weight: 0.55lbs/210g, suitable for storing bags, boots or even bags. Allows you to take this mini pump with you wherever you need to keep your balls inflated. Bright LED lights and a backlit LCD screen make it easy to use the ball pump at night or in dark places. Fast ball pump / Hands-free / Save energy Air volume input: 4L/m, it only takes 1-2 minutes to complete balloon inflation. Save more energy to hit your opponents. The built-in digital pressure gauge and LCD display allow you to preset a very precise PSI value to inflate your ball and then get an accurate ball pressure (PSI) level. Makes it easy to inflate the ball without wasting time Universal USB Cable The USB cable is designed to be compatible with any USB port for charging. Built-in 2000mAh lithium battery, fully charged for about 3 hours, can work for about 40 minutes. It also has built-in LED lights, perfect for fighting bouncy balls or emergency lights in close or dark places. Wide use Comes with 1 swim ring nozzle and 2 ball needles and a pipe. The ball pump is suitable for volleyball, football, basketball, rugby, children's toy balls. Also a small swimming ring for more fun in outdoor activities. Note: Not suitable for bicycle tyres.