1. Preset tire pressure, stop automatically when full
2. Upgrade and enlarge the pure copper cylinder, 10s strong air supply, inflated soon
3. Intelligent digital display, real-time monitoring of current tire pressure
4. Upgrade the LED lighting, press the light button to turn on the lighting, and then press the light button to switch the warning light
5. 4-layer structure inflatable tube, antifreeze/explosion-proof/wear-resistant