Durable Electric Tire Inflator: This tire inflator is powered by a battery. Powered by a built-in 4000mA rechargeable battery, it does not require an external power source when in use. The inflation speed is three times faster than other common cordless inflators on the market, allowing 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 the car, bike rack or backpack. back, making it perfect for traveling or inflating on the go. the house. The cordless tire inflator comes with a variety of accessories. Accessory and is a must-have for drivers, cyclists and adventurers. Large Screen and Auto Shut-Off: The large LED screen displays real-time pressure values, el and preset values, making it easier to check the tire pressure status. The automatic closing design also prevents