1.Easy to Use: You can choose from 5 inflation modes of the tire pump (Car, Motorcycle, Bike, Ball) according to different inflation needs. You can also easily select from 4 pressure units (PSI, Bar, kPa, kg/cm) according to your needs. 2.Dual Power Options: The portable tire pump has a builtin 4000mAh rechargeable capacity battery, which can provide 3036 PSI inflation for 8 tires (195/65R15). This tire inflator offers two power modes, using an embedded battery or the included 12volt car lighter socket power cord. 3.Fast Inflation Compact: The portable tire inflator weighs less than 1 pound, which can be easily put into your car, bike rack or backpack, for travel and home use. The compressor has a maximum pressure of 150 PSI and an airflow rate of 19 liters per minute, it can increase the air pressure of a 195/65R15 tire from 30 PSI to 36 PSI in 1 minute. 4.Accurate Display and Auto Shutoff: The portable tire inflator is equipped with a precision pressure sensor and LED display for easy monitoring and operation. When the tire reaches the preset pressure, it automatically shuts off to prevent overinflation. With just one of a button, the wireless tire inflator can easily inflate car tires, motorcycle tires, bicycle tires, balls, etc.