Faster Inflation and Deflation: Electric air pump, inflation and deflation can be completed in a few seconds to several minutes, depending on the size of the object, thanks to the high power of 15W and the air flow of 320L/min. Simply insert the air nozzle into the valve and turn on the switch. Less waiting time means more time for playing or relaxing! Compact and Powerful: The air pressure of 3300-3500Pa and the wind speed of 320L/min allow the air mattress pump to achieve rapid inflation or deflation. Much higher performance than other air pumps for inflatables of the same type and faster than hand pumps and battery-powered air pumps. You can easily blow up a swimming ring in about 30 seconds. Take control of your time and simplify your life. Long-lasting power supply and USB charging: The electric battery air pump has a built-in 4000mAh rechargeable lithium battery, which provides a longer working time. The included USB charging cable can be used with any device with a USB