Ⅰ. Automatic Electric Ball Pump is designed with intelligent pressure detection and stop function. Just preset the correct ball PSI, press to start and it will automatically stop inflating once the preset pressure is reached. Ⅱ. Air volume input: 4L/M, which finishes inflation of a ball in 1-2 minutes. Ⅲ. Built-in Digital Pressure Gauge and LCD Display, you can preset a PSI to inflate your ball, and then you could get the pressure (PSI) in balls. Ⅳ. Electric ball pump with 2000mAh rechargeable battery, inflate 30 balls on one charge, come with Micro-USB charging cable, about 120 minutes to full charged. Ⅴ. Size: 6.29*1.57*1.57inch, fit in your bag, your boot or even your pocket. With bright LED lights and backlight LCD display make it convenient to use the ball pump at night or in dark places. Ⅵ. Product includes: 1* Smart Ball Pump, 1 * USB Cable, 1 * Waterproof Bag, 1 * 10 cm Air Hose, 2 * Ball Needle, 1 * Swim Ring Nozzle. Ⅶ. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.