Powerful Electric Air Pump -- The air pumps are so powerful that they can not only inflate items but also deflate them by sucking in air 4 nozzles to choose from - We have 4 different size nozzles in the electric air mattress pumps, allowing you to inflate/deflate different items for any occasion Suitable for outdoor air bags, car air bags, swimming rings, water floating rows, vacuum storage bags and other inflatable products. Instructions for use -- The inflatable mattress pump is compatible with a 3000mAh power supply. To inflate, simply put the inflatable head at the filling socket, then press the switch. To deflate, you need to put the inflatable head into the air hole, then press the switch to deflate. Our electric air mattress pumps are simple to use. Multi-Purpose -- Includes car power adapter and home power adapter. This inflatable mattress pump is a powerful inflator and deflator for indoor and outdoor use, especially for travel and outdoor activities. The air pump saves you time for inflating air cushions, air beds, inflatable boats, inflatable furniture, swimming rings and much more Rechargeable - The Port TYPE-C durable charging station is more versatile and more stable.The splash-proof design can avoid damage from splashing water and help you overcome the harsh outdoor environment.Small size Built-in 3000mAh lithium battery , the air pumps can reach 2.2kPa and 300L/MIN pressure, support 40 minutes of use, can fill more than 10 air mattresses and compress several storage bags.