Built In Lithium Battery & USB Rechargeable: Built in 3600mAh lithium battery, once charge can support you to inflate an standard air bed mattress more than 20 times. USB powered, quickly recharge by power bank when outdoor or charge directly by phone charger at home ★Powerful & Extensive Applicability: Quick inflate a standard air mattress in 2 minutes. Equip with four nozzles, suitable for most air mattresses, airbed, pool floats, swimming rings, inflatable boats, kiddie pool, inflatable play center and other inflatable toys ★Auto Inflate & Deflate: Insert the nozzle into air valve tightly, press the switch then you can leave it. With deflate function, quick deflate save your time. In addition, X-Lounger air pump also can be used to increase fire when camping and deflate vacuum storage bags when travel ★Super Light & Easy To Use: Weighs only 4.7 ounces, Dimensions 3" x 2", smaller than iphone 6, easy to carry around, best air pump for beach, camping and outdoor parties. In addition, its light weight and easy operate feature make it to be the best air pump for kids