1. Product size: 140 x 90 mm (bare - machine size, excluding air tube). 2. Inflation pressure range: 3 - 150 psi/0.2 - 10.3 bar. 3. Lithium - ion battery: Battery energy is 28.86 Wh/11.1 V. 4. Sensor accuracy: ± 1 psi. 5. Charging time: Less than 4 hours. 6. Input parameters: 5V - 2A. 7. It comes with lighting, which is practical and useful. LED lighting ensures no fear of darkness during night - time work. The SOS flashing light allows for more composure in critical moments. 8. The pump and power supply use a Type - C interface. The USB - A interface can charge mobile phones. 9. Dual heat dissipation: A high - power fan constantly works in conjunction with the body's heat dissipation holes. 10. Large digital screen for real - time display: A 4.4 - inch high - definition large screen displays real - time data such as current tire pressure, preset tire pressure, and usage mode. It has a built - in battery, enabling inflation anytime and anywhere. The built - in 2000mAh large - capacity battery ensures maximum power. No external power supply or wiring is required. 11. Five preset inflation modes: New users don't need to worry. You can switch between the five modes with one key, and the default air pressure range is limited to avoid over - inflation. 12. The free mode can memorize pressure values. After one - time adjustment, you can say goodbye to cumbersome settings.