4000 mAh large capacityPortable tire inflator tire pump with built-in 4000 mAh battery, standby time up to 2 months, long-lasting battery. Up to 150 PSI output air pressure ensures that you can easily inflate all the tires of your car, motorcycle or other smaller items in minutes.LCD display, lightweight and beautifulThe air pump is upgraded with a unique large LCD display, which can clearly display the current tire pressure value. Unique and beautiful design, the tire inflator pump is very easy to use, only 3 steps: power on, preset pressure, start inflation. Automatically shuts off when preset pressure is reached, providing safe and reliable use.Upgraded Ventilation SystemCar tire inflator use one-button deflation button, press to realize deflation function, freely control and adjust the required amount at any time; Built-in anti-scalding design, when inflation is working, the temperature of the inflation port can reach 120 degrees Celsius, and the port sinks, reduces the probability of burn accidents. Increase the ventilation area, which is more conducive to internal heat dissipation and more stable workMultifunction Tire PumpIn addition to the tire inflator pump can inflate your car well, the ball, it can also display the current tire pressure when connected to the tire valve. In addition, it is equipped with LED light, which can help you use it in dark places. Also through the USB output port, it provides you with a power bank function to charge your smartphone in case of emergency. It also has a smart design that prevents overinflation and automatically shuts off when the desired tire pressure is reached.