Technology, Enhanced Durability: This tire inflator is manufactured using unique technology, so all its core components, including cylinders, motor gears and connecting rods, are manufactured using powder metallurgy one-piece molding technology. This revolutionary manufacturing process greatly enhances the durability of the inflator. Programmable Inflation: Use the "M" button to set the desired pressure unit, then press the "+" and "-" buttons to set the desired pressure. The air compressor will automatically shut off when it reaches a preset pressure (make sure you set the pressure higher than the current pressure in your tires). COMPACT SIZE AND EASY TO STORE: This portable tire inflator features a lightweight and compact design that easily fits into the glove box, seat, trunk, and more. When not in use, it's almost unnoticeable. SMART PRESETS ; AUTO OFF: The tire inflator's digital screen provides accurate readings and 4 pressure units to choose from, while its independent buttons allow for intuitive control. You can easily preset your tire pressure without having to worry about constantly monitoring it, and this smart inflator automatically shuts off once the desired pressure is reached. EASY NIGHT USE: This tire inflator comes with a backlit screen and flashlight for easy use even in dim environments. Its independent LED button enables one-touch flashlight operation. Great gift for men and women