Rechargeable & Wireless: With a USB port, this USB mattress pump can be quickly charged via a power adapter, laptop, USB car charger or power bank. The wireless design puts an end to the tangle of cables and allows you to use it wirelessly anytime, anywhere without being limited by the power supply Long-lasting energy and charge indicator: With the built-in 4000mah lithium battery, the Quick Fill Battery Air Pump Support Long Working Time Up To 30-40 Minutes. Also, there are 4 charge indicators, perfect for checking the remaining power and charging status Compact & Easy & Portable: Our Portable Air Pumps Weighing Only 270g, Is About The Size Of A Palm, Which Is Ultra-light And Compact To Save Space And Carry, Making Inflating Pump Easy To Hold, And Provide Convenience In Indoor And Outdoor occasions to use. You Can Easily Pack Usb Pumps In The Storage Bag And Wirelessly Hang Air Pump On Your Backpack Or It Can Fit Well In Your Carried Package And Travel Suitcase Fast Inflation And Labor Saving: This Portable Inflatable Deflate Pump Is With A Small But Equipped with a powerful motor capable of maximizing airflow for fast and effortless inflation. Since wireless air mattress pump is battery powered, you don& 39;t need to inflate it by hand Wide application: the universal electric inflatable pump can not only inflate objects, but also deflate them. The inflating air pump is equipped with 3 different sizes of nozzles, suitable for inflating a variety of inflatable products, such as inflatable sleeping bags, swimming rings, inflatable pools, floats, toys, boats, loungers, sofas, yoga balls, pillows and other compatible accessories. p>