METAL INFLATABLE STRUCTURE: It’s composed of metal cylinder and metal gear, it could continuously work for 20 minutes, the maximum air pressure could reach 160psi, meet the needs of 4 tires at a time, more efficient and faster to use.AUTOMATIC SHUT OFF&LCD PRESENT MORE: Preset the value you desire and the air compressor will automatically shut off when the value is reached. The back-lit LCD screen will display both the desired tire pressure value and the current tire pressure. The unit of air pressure can be switched among bar, kpa and PSI.3-Meter Cord & Convenient Storage: Its 9.84 foot (3-meter) power cord is long enough to reach all your car tires. The compressor's power cord and accessories can be stored inside the air compressor to save space. Its compact size makes it easy to store in cars, motorcycles, and backpacks so you can take it anywhere, anytime!Automatic Filling Shutoff & LED Light: The portable air compressor’s screen will display both preset tire pressure and real-time pressure. The inflator will automatically shut off when it reaches the preset value, no more worrying about overinflation and no need to monitor the entire process. Hold the unit switch button to turn on the light, it makes inflating and changing tires in the dark much easier.Highly Accurate TrueGauge Display: With AstroAI's specialized TrueGauge technology, this tire inflator includes a more accurate sensor that is capable of collecting pressure data with a higher valid data rate, achieving 60% higher accuracy.