1. Fast Inflation and Automatic ShutdownOur speed car pumps can inflate standard mid size car tires from 0 to 35 in 3 5 minutes. The built in automatic shutdown function ensures precise inflation and stops the pump when your preset pressure is reached. Enjoy a safe, fast and reliable experience without constant monitoring. (Note: It can work continuously for 10 minutes.) 2. Digital Screen, Real time Pressure DisplayLarge digital screen displays real time tire pressure for a more accurate and intuitive experience. Avoid pressure reading errors common with dial tire pumps. 3. Preset Tire Pressure and Automatic ShutdownThis tire inflator automatically shuts down once it reaches a predetermined value, eliminating the need to monitor the inflation process and worry about excessive inflation. Inflation: Just start the engine, plug the lighter into the 12V outlet of the car, connect the tire, and preset the required pressure by pressing '' and ''. 4. Extra Long Power Cord and Emergency LED LightsWith a 0.48 meter long air hose and a 3 meter long power cord, the car tire inflator is easy to connect to any tire. The integrated LED light is ideal for emergencies and working in dark environments. When the digital tire inflator is activated, the LED lights will illuminate.