【POWERFUL AIR COMPRESSOR】This tire inflator comes with a built-in 25000mAh rechargeable battery for power supply, eliminating the need to connect to an external power source during use. Inflation speed is 3 times faster than other ordinary cordless inflators on the market, +40% more power than other ordinary electric air pump, whinch can provide a cordless continuous runtime up to 2 hours.【4+N INFLATION MODE】The air compressor has four types of pressure units: PSI, KPA, BAR, and KG/CM ². There are four preset inflation modes: bicycle, motorcycle, car, and ball. The fifth custom mode can also set pressure values based on the inflation object to meet various inflation needs. It is an essential product for daily life and travel.【12V PORTABLE AIR PUMP】The powerful tire inflator has a built-in high-performance chip that can quickly inflate tires. It provides a maximum pressure of 150 PSI and an air flow of 40 L/Min, It inflates with a pinpoint precision of ±1PSI. Being faster and highly accurate. Inflates small car tires (27-36PSI) in less than 1 minute.【DUAL POWER SUPPLY MODE】Portable air compressor is equipped with a dual power supply, The air pump has 2 ways to use it, it can be used wirelessly and you can also use the car cord to inflate it when it has no power. In case the battery runs out, it comes with a 9.8 Ft 12V DC power cord that enables you to power by connecting it to the car. This ensures that you never have to worry about running out of power on the go.【LED DIGITAL DISPLAY & AUTO SHUTOFF】This portable tire inflator for car comes with a precise pressure gauge and a large LED digital display, enabling you to read the real-time pressure and the preset pressure at just a glance. Tire pump can preset and monitor the tire pressure, and automatically shut off when the set pressure is reached. No need to worry about over-inflating your tires, it's simple and safe.