1. Powerful Air CompressorBuiltin rechargeable highcapacity battery, the tire inflator portable air compressor does not require an external power supply while working. It has 2x faster inflation speed and 30% more power than other ordinary electric air pumps, and can provide a cordless continuous runtime up to 2 hours. 2. Air PumpThe powerful tire inflator has a builtin highperformance chip that can quickly inflate tires. It can fill a small car tire up (25 36PSI) in 1 minute in everyday situations or fully inflate car tires (0 36PSI) in just 5 minutes. 3. 4 N Smart Modes4 preset inflation modes (bike, motorcycle, car and ball) are convenient for beginners to choose. Simply preset your desired pressure, and it automatically stops when the preset pressure is reached, ing a , quick and reliable using experience. It is an ideal choice for inflating cars, motorcycles, and bicycle tires. 4. Accurate LCD Dual ScreenThe air pump for car tires is equipped with dual digital LCD screens. The upper and lower screens display realtime tire pressure and preset tire pressure data. The tire pump can preset and monitor the tire pressure and automatically shut off when the set pressure is reached. There is no need to worry about overinflating your tires.