About our car air compressor ●Does insufficient tire pressure affect the sense of driving direction? ●Low tire pressure increases your car rolling resistance and increase fuel consumption? ●Don't worry as our portable tire inflator can solve those problems mentioned above. -Compared with the bulky traditional air pump, our hand held wireless air pump takes its great advantages by bringing much more flexibility and convenience for various uses. Advantages of our electric bike pump ●The air pump can inflate 4 tires with the charging time of 2 hours. It is portable that you can take it around you trip. ●The tire inflator makes you read present tire pressure easily and regularly check the tire pressure data conveniently with LCD digital display ●You can preset your target pressure and it will automatically stop working until the pressure reached pre-set value. ●This portable mini air compressor pump is suitable for home use cars, motorcycles, bicycles, all kinds of balls, and other inflatables. ●The copper electric motor is powerful enough to improve pumping efficiency and ensures its great longevity. Safe and quiet. How to charge thi portable air compressor 1.Set off the car 2.Put the ignitor into the car 3.Connect the cable to the battery air compressor How to Use Our mini tire inflator 1.Turn on the power and insert the inflation tube. 2.Set the tire pressure and short press the setting button. 3.Restarts the air pump. 4.Pull the tire first and then pull the air pump tube. Product Specification ●Battery capacity：2000mAh 12.4V ●Charing time：2hrs ●Charging method：Micro USB Package inluded ●1 x air pump ●1 x ignitor cable ●1 x USB cable ●Air pump accessories