【Automatic shutdown】The car air pump is based on the automatic shutdown function, providing you with a reassuring experience. Preset the desired pressure level and start the inflation job. The car air compressor will automatically shut off at the desired level. No need to worry about over-inflation 【Convenient】The machine is convenient and easy to operate. After turning on the R button, click the R button to display the tire pressure value of your tire, then click +/- to adjust the value you need, and then click the yellow button to inflate 【Quick Inflation】The ergonomic shape design makes it easy and comfortable to use, whether it is on the ground or in your hand when inflating. When the inflator is working, the built-in LED lights up, illuminating the dark workplace. 【Multi-purpose】This portable tire inflator is suitable for cars, motorcycles, bicycles, sports balls and inflatable pool toys, etc. Note: Not suitable for large truck tires. 【Accessories】 1 Cordless Tire Inflator, 1 Charging Cable, 3 Nozzles