As a powerful wireless air pump, EVO air pump achieves 4.5 kPa high air pressure and 250 L/MIN flow rate. Due to its high pressure, this EVO air pump reaches 80%-90% inflation saturation (higher than other's 70%). Allow you to in/deflate items for any outdoor & indoor occasions The rechargeable air pump features big 3800 mAh battery, which provides Max. 45 minutes work after one charging. When fully charged, the electric air pump can fill 32 swimming rings, 12 air mattresses, or 8 inflatable boats at a time Weighs only 5.8oz, measures 2.4x2x3.6"", this battery air pump is small, cute, handy, and convenient to be carried on your backpack. Cordless design, greatly different from traditional air pump without batteries. Get rid of tangled electric wires, no outdoor power source needed Flextailgear mini pump can quickly inflate/deflate large to small-sized air products like pool inflatables, sofa, air mattresses, air beds, air boats, inflatable furniture, swimming rings, sleeping pad