Product Description Size: 5.5 * 5.5 *7.5 cm Colors: Black Battery capacity: 3000mAh Voltage: 7.4V Quantity: 1pcs Package content: 1* outdoor dual-use portable air pump 1.Faster than other air pumps: This professional electric air pump has full power and stable wind speed at 300L/min. Can reach 2200 Pa pressureOur air pump can inflate an adult swimming ring in just 15 seconds. It will will save you a lot of time to enjoy life and games. 2.Longer working time: The portable air pump has a large capacity battery of 3000 mAh, which has a long battery life. Generally, other air pumps can work for 20 minutes, while ours can work continuously for 40 minutes. 3.Very light weight: Our air pump is only about 0.32lb, which can be put in a pocket. There is a storage bag in the suit, you can use it to install the air nozzles and USB cable, the mini air pump will only take up a small space. 4.Quick Charge: This mini electric air pump can be fully charged in just 2 hours The USB charging method is more convenient. You can charge it at home, office, car, or anywhere that USB can be used. 5.With lithium battery: The portable lithium battery air pump is charged with a USB cable, and you can use it freely wherever you go. This gets rid of the trouble that traditional household air pumps need to be plugged in to enjoy outdoor amusement. 6.Applicable to Any Place: The wireless air pump can work for 40 minutes continuously after charging with USB cable. No matter where you go, you can use it freely. Get rid of the traditional domestic air pump that needs to plug in the power cord to enjoy your outdoor amusement.