【Cordless Portable Design】: Our cordless tire inflator has a compact appearance, light weight and ergonomic design, can be held with one hand and is easy to use. Built in a large capacity 2 * 2000mah rechargeable battery, eliminates the slavery of long wires. It can be fully charged in 3 - 4 hours and can be used for 20 - 30 minutes. It can inflate tires anytime and anywhere, making tire inflation more convenient. Note: The red light on the USB cable lights up while charging and there is no indication on the tire inflator. Once fully charged, the red light will turn green. 【Fast Inflation & Auto Shut-Off】: Our car tire pump provides 150 PSI of powerful pressure and can fully inflate a standard mid-size car tire in 3-5 minutes. The tire inflator air compressor will automatically turn off when the preset pressure is reached, so you don't have to look at the tire pressure gauge all the time, freeing your hands and making inflation easier. 【Pure Copper Motor & Fast Heat Dissipation】: The