Durable Electric Tire Inflator: This tire inflator is battery-powered. Powered by a built-in 4000mA rechargeable battery, it does not require an external power source during operation. The inflation speed is three times faster than other common cordless inflators on the market, achieving powerful inflation in 20 seconds. It can inflate 12 car tires or 30 racing tires without the problem of low power. Portable Design: The cordless tire inflator features a cordless, compact design with a compact size. It comes with a storage bag for easy storage in your car, bike rack, or backpack, making it perfect for traveling or inflating around the house. The cordless tire inflator comes with a variety of accessories. This accessory is a must-have for drivers, cyclists, and adventurers. Large Screen and Auto Shut-Off: The large LED screen displays real-time, preset, and tire pressure readings, making it easier to check tire pressure status. The auto-closing design also prevents over-inflation and