[Latest Technical Breakthrough] High quality brushless motor, special air duct design and excellent wiring design make the motor heat evenly. This means that during use, as with other air pumps, there is no need to stop working to cool the motor when it overheats. Our air pump can work uninterruptedly until it runs out of power! [SUPER MINI & PORTABLE]:The electric air pump weighs only 4.9 ounces (about 4.9 grams) and measures 1.9*1.9*2.8 inches (about 4.9 x 4.9 x 7.8 cm), which is smaller than your fist. Easily fits into a backpack or even a pocket. Made with ABS shell and sealed surface technology, one-touch operation, absolutely indispensable for outdoor camping, hiking, beach and indoor storage bags, no longer limited by power supply. FAST INFLATING/DEFLATING:This portable air pump is equipped with a powerful motor with maximum air pressure of 4kPa, maximum air speed of 280 liters/minute, and power of 30W. It takes only about 15~20 seconds to fill a swimming ring, about 100 seconds to fill an inflatable mattress (no turnaround plug), 2~3 minutes to fill an inflatable swimming pool, and 30~40 seconds to compress a vacuum storage bag (depending on the size of the product). AIR PRESSURE SENSING:Ultra mini pump built-in special air pressure sensing device, when the internal air pressure of the inflatable product increases, the pump will increase the rotation speed to increase its own air pressure. This means your inflatable product can be inflated to the maximum, not like a deflated rubber ball. Rechargeable and Nozzle]: Built-in 1200mAh lithium polymer rechargeable battery, fast charging with Type-C port, charging time is only 2-3 hours (using 10W-20W adapter), then it can work continuously for 20 minutes. And with 5 different nozzles, it can be adapted to most inflatable products. NOTE: The inflator pump cannot inflate tires, balloons or basketballs. HASSLE-FREE GUARANTEE: We are always ready to provide high quality service and support to every customer. If you have any questions, please feel free to contact us through Amazon. We will give you a satisfactory answer within 24 hours.