Small portable: the electric air pump can be used not only at home, but also on the beach, camping and outdoor parties. The overall size is small and exquisite, you can easily put it in your backpack when not in use, it will bring you no extra burden. Durable power supply and USB charging: electric battery air pump built-in rechargeable 4000 mAh lithium battery, which can give you a longer operating time. In addition, the package includes a USB charging cable, so you can use any device with a USB port (e.g. car socket, computer and mobile power supply) for charging, which makes your summer trip even more comfortable. Faster inflation and deflation: Simply insert the air nozzle into the valve and then turn on the switch. It only takes ten seconds to a few minutes (depending on the size of the object) to complete the inflation and deflation of the object. Reduce waiting times and make playing or relaxing easier. Safety and anti-fall: the portable battery air pump has an overheating protection function that can work continuously for a long time without burning, so children can use it with confidence. 4 different nozzles: the electric air pump is equipped with 4 different nozzle types that can meet your different inflation needs. It is very suitable for air cushions, mattresses, inflatable swimming pools, swimming rings, paddling pool children, yoga balls, balloons and other inflatable items.