Feature: 1. ACCURATE DIGITAL DISPLAY SCREEN: The large screen displays the preset value, which is convenient to observe and operate at any time. Tire pressure can be preset at the same time. Once it reaches the set pressure, it can be turned off automatically to avoid over inflating. 2. LARGE CAPACITY BATTERY: Built in 2000mAh rechargeable large capacity battery, tire inflator can work without external power supply. Compared with ordinary tire pumps it inflates 2 times faster and 30% higher power. 3. HIGH PERFORMANCE: Built in high performance chip provides maximum 150psi pressure and 50L/Min air flow. In daily use, it can fill a small car tire (25‑36PSI) in 1 minute or fully inflate a car tire (0‑36PSI) in 5 minutes. 4. LONG WORKING LIFE: The casing is made of premium ABS material and comes with a pure copper motor inside to ensure durability and stability for a long working life. 5. CORDLESS DESIGN: The portable tire inflator has a cordless design, making it more convenient and flexible for daily use, you can carry and use it anytime and anywhere. Specification: Item Type: Portable Tire Inflator Material: ABS, Pure Copper Motor Weight: Approx. 520g / 18.3oz Battery: Lithium Battery, 2000mAh (Built In) Maximum Air Pressure: 150PSI Air Pressure Flow: 50L/min. Package List: 1 x Portable Tire Inflator1 x USB Cable3 x Nozzle