Simple and compact structure, not only can be used at home, but also the best partner for swimming, beach surfing, boating Small size, can be easily put into a backpack without extra burden. Rugged power supply and USB rechargeable battery powered air pump, built-in 4000mAh rechargeable lithium battery, working time 40-60 minutes. A USB cable is included in the package, so you can connect any device with a USB port Multifunctional nozzle electric air pump has 4 different nozzles to meet your different inflation needs. Ideal for inflatable items such as inflatable boats/children's pools/air mattresses/mattresses/swimming rings/yoga balls/balloons. Also, it can be used in a vacuum storage bag to squeeze out excess air in the vacuum bag. Battery protection and anti-skid treatment The portable electric air pump has overheat protection function and can work continuously for a long time without burning. It can be used by children and protected from damage. Ergonomic design, wear-resistant and non-slip material, non-slip, easy to hold.