TOUGHULTRA TECHNOLOGY, ENHANCED DURABILITY: This tire inflator is manufactured with AstroAI?s unique ToughUltra technology, so all of its core parts, including its cylinder, motor gears, and connection rod, are built using a powder metallurgy integrated molding technique. This revolutionary manufacturing process greatly enhances the inflator?s durability and increases its service life by 30%. PROGRAMMABLE INFLATION: Use the "M" button to set your desired pressure unit, and then press the "+" and "-" buttons to set the desired pressure. The air compressor will automatically shut off when it reaches the pre-set pressure (Please make sure the pressure you set is higher than the current pressure of your tire). COMPACT SIZE EASY TO STORE: Featuring a lightweight and compact design, this handy and portable tire inflator can easily fit into glove compartments, seats, trunks, and more. When it isn?t being used, it?s almost unnoticeable. SMART PRESET AUTO OFF: The tire inflator?s digital screen provides accurate readouts and 4 pressure units to choose from while its independent buttons allow for intuitive control. You can easily preset the tire pressure and not worry about constantly monitoring it, this smart inflator will automatically shut off once it reaches the desired pressure. EASY NIGHTTIME USE: Equipped with a backlit screen and a flashlight, this tire inflator brings convenient use, even in dim environments. Its independent LED Button enables one-press flashlight operation. Great gifts for men and women.