Long battery life: this water pump Air has sufficient power reserve and has a long battery life on a single charge. The tire inflator air compressor is built with 12V 2000mAh lithium battery, fast charging and long battery life. Long battery life solves your worries. Fast heat dissipation: The product adopts metal cylinder, which has stable and fast heat dissipation, reduces the body heat during use, and reduces noise at the same time. LED design: the product comes with with LED light, which is convenient for charging the LED light at home. after dark. Intelligent digital display: This product is preset to display. to stop when the tire pressure is full, no need to look at the gauge all the time.