[Fast inflation/deflation] - The maximum air volume of the electric inflation pump is 300L/min, the maximum inflation pressure is 2200Pa, and the noise level is 80-95dB. With dual inflation and deflation functions, simply select the nozzle that matches the valve of the item you need to inflate, and press the switch to inflate and deflate easily. [Air Pump electric air] - Equipped with a 3000mAh 3.7V rechargeable battery and a USB cable included in the package, it can be easily charged with any device with a USB port. A full battery charge only takes 2-8 hours, depending on the plug type, 2 hours for a 2A plug and 4-8 hours for a 1A plug. The battery lasts 40 minutes when fully charged. [Indicators and Safety in Use] - Designed with a charging indicator that flashes when charging and stays on when fully charged. If the battery is low, the LED flashes when the switch is on and turns red when the battery is below 20%. IPX4 waterproof and overheat protection function can prevent it from being burned due to high temperature for a long time. [With four nozzles] - The air pump to battery is equipped with four different types of nozzles to help you quickly inflate and deflate different items. Such as air mattresses, swim rings, pool buoys, pool toys, vacuum storage bags, etc. Note: Not suitable for inflating balls such as basketballs and footballs or bicycle tires etc. [LIGHTWEIGHT AND CONVENIENT] - This mini electric air pump measures 2.17 x 2.48 x 3.23 inch / 5.5 x 6.3 x 8.2 cm, super light and compact, only 6.03 oz. You can easily store it in your backpack or suitcase, it doesn't take up much space and is easy to carry. Perfect for everyday use when traveling, camping or at the pool.