1. Input voltage: 5V/2.4A 2. Battery capacity: 27.75Wh 3. Power: 54W 4. Pressure gauge range: 5-150PSI (more than 150, 150 flashes, more than 150PSI may damage the sensor) 5. Support pressure within 120PSI 6. Charging time: about 4-5 hours 7. Battery capacity: 2400mAh 8. The smart sensor chip is built in the valve, and the tire pressure of the car will be automatically detected and displayed when it is turned on. 9. Pre-set standard tire pressure, it can be easily inflated even if the standard tire pressure is not clear when inflating 10. When it reaches a healthy tire pressure value, it will automatically stop inflation 11. All metal pressurized cylinder, low current direct drive structure, stable operation 12. The air pump is equipped with 274 small air outlets on both sides to quickly transfer internal heat and ensure stable operation of the motor 13. With LED lighting, easy to use at night 14. Size: 140.2x42.6x78.2mm 15. Weight: 610g 16. Packing list: trachea*1+ air nozzle package (3 pcs)*1+ general data cable + air pump