Quick Inflation / Deflation: The portable air pump armed with a powerful motor, maximum air pressure 4kPa, maximum wind speed 280L/min, power 30W. it only takes about 15~20s to fill a swimming ring, about 100s to fill an air mattress (no non-return plug), 2~3mins to fill a inflatable pool, 30~40s to compress a vacuum storage bag (depend on product sizes). Air Pressure Sensing: The ultra mini pump built-in special air pressure sensing device, when the internal air pressure of the inflatable product increases, the air pump will increase the rotation speed to increase its own air pressure. This means your inflatable product can be filled to the max, rather than like a deflated rubber ball. Worry-Free Guarantee: We provide every customer with high-quality service and support at all times. If you have any questions, feel free to ask us through Amazon. We will give you a satisfactory answer within 24 hours. Rechargeable & Nozzles: Built in 1200mAh lithium polymer rechargeable battery, Quick charging using Type-C interface, charging time only 2-3 hours (using 10W-20W adapter), then can work continuously for 20mins. And equipped with 5 different nozzles, it can be adapted to most inflatable products. Note: the air pump cannot inflate tires, balloons or basketballs. Ultra-Mini & Portable: Electric air pump weighs only 4.9 oz, size in 1.9*1.9*2.8 inchs and is smaller than your fist. Easy to be carried in your backpack or even a pocket. Crafted with ABS shell and well-seal surface technology One-button operation, absolutely indispensable for outdoor camping, hiking, beach, and indoor storage bags, no longer restricted by the power supply.