About this product: Meet Your Needs: The battery operated air pump has a built-in 2000mAh rechargeable battery that does not require an external power source while inflating. The battery can be quickly and conveniently charged using the 5V Type-C connector. With enough power, it can inflate 4 car tires（Supplementary Air Pressure）, 10 motorcycle tires, 20 mountain bike tires and 60 soccer balls, giving you enough endurance for outdoor travel. Product features: 1. 150 PSI, powerful performance 2. built-in 2000mAh, full battery life, no need external power to inflate. 3. pre-set tire pressure, stops when pressure is reached to prevent over-inflation 4. digital tire pressure detection to avoid the hidden dangers of over-inflating or under-inflating your tires 5. Large LCD digital display, 360 degree viewing without blind spots 6. The LED lighting function allows you to work freely in the dark 7. 4 inflating modes: car, bicycle, motorcycle, ball 8. one-button switching of units: Psi, Kpa, Bar, Kg / cm² How can you make better use of the Tavaler battery pump? 1. make sure the battery is fully charged before use. 2. This product is not a toy, please keep it away from children. 3. after prolonged use, the hose and device will become warm, which is normal. 4. the continuous pumping time should not be too long. It is recommended not to use it continuously for more than 10 minutes each time. 5. Please note that the bicycle compressor is not suitable for balloons, toy balls, floating rings, trucks, large trucks, buses, etc. Product specification: 1. Pressure range: 3-150 Psi 2. Battery capacity: 2000mAh 3. Air hose length: 23.5 cm 4. Input: 5V 2A 5. Charging interface: type C 6. Charging time : 2 hours 7. Product size: 20*7.5*4cm 8. Accuracy: 1 Psi Product packaging: Air compressor battery * 1 Inflatable Hose * 1 Type-C charging cable * 1 French air nozzle *1 Ball filling needle * 1 Air inflating nozzle *1 German User Manual *1