Smart Electric Ball PumpDesigned with intelligent pressure sensing and stop function, air pressure sensing is accurate to 0.1 PSI and supports preset air pressure. Once the preset PSI value is reached, the ball pump will automatically stop inflating, saving the worry and effort. Lightweight and portable Pump size is 16*4* 4cm and the weight is 260 grams. It slips easily into your pocket or bag and takes up very little space, allowing you to walk around without any burden. The USB cable is compatible with any USB port for charging. The built-in 7.4Wh lithium battery can work for about 40 minutes after being fully charged for about 3 hours. LCD display and LED torchLCD display shows air pressure actual, preset air pressure and battery level for your convenience. The emergency light at night only needs to press the right button twice to turn on the LED light. [Quick inflation] The air volume of the air pump is 4L/m, and it only takes about 1-2 minutes to inflate, which is twice that of a manual air pump. This electric pump is a great gift option for kids, students, athletes and coaches. Wide ApplicationSet includes 1 swim ring nozzle and 2 ball pins. This ball pump is suitable for volleyball, football, basketball, rugby, yoga ball, children's toy ball and swimming ring. REMARK : It does not work with bicycle tires.