Digital tire pressure detection.Inflating pressure can reach up to 150psi.A new generation of air pump with better performance:Compared with the Mi Home Air Pump 1S, this pump has optimized details and improved internal structure. It inflates 25% faster to create a more convenient and efficient air-filling experience.It speeds up by approximately 25% to help you get out of trouble quickly:With a high-power magnetic motor, it can fill up one empty tire in just 8 minutes*. The inflation is more powerful.Inflation speed increased by approximately 25%.Battery life improvement. It can inflate up to 10 tires when fully charged.Hardware configuration upgraded, energy efficiency improved. It can continuously inflate up to 10 tires* when fully charged, and fill two empty tires* continuously.High-precision cylinder body can reach up to 150psi:The air pump adopts a 19mm high-precision alloy casting cylinder body, and the inflation pressure can reach up to 150psi. It takes only 86 seconds* to fill a high-pressure bicycle tire.Pre-set pressure stops automatically and accurately displays real-time tire pressure:Set the desired air pressure value or select the preset mode, one-button inflation, and inflation will automatically stop when it's complete.