1. 2000A ultra-large current to quickly start the car engine: car emergency starter has 2000A ultra-large current and can restart a stalled car within 1-3 seconds. It can help you start old cars, cars that have been parked for a long time, cars with low or high temperatures, etc. When an emergency occurs, you don't need to call for rescue and towing, saving you time and costs. 2. Turbocharged air pump, the inflation speed is increased by 2 times: The 19-cylinder turbocharged sports air pump provides 40L/Min air flow and supports tire pressure detection, preset value automatic stop and unit switching. It can inflate 195/65/R15 car tires from 0 PSI to 35 PSI in just 5 minutes. The tire pump has a built-in accurate air pressure sensor with an error of less than 1%. 3. Protect car battery: The smart emergency starting clamp has a built-in protection system that can automatically turn on up to 10 protection functions for your car battery, such as anti-spark, reverse polarity, overcurrent, short circuit protection, etc. Protect your car battery in all aspects and extend the service life of the battery. 4. Intelligent mode 4+N: The car tire inflator has 4 preset inflation modes (car, bicycle, motorcycle, ball), making it easy for beginners to choose. It also has a memory function. After turning on the power, just click "+" or "-" and the screen will automatically display the inflation mode and air pressure value time you last set. It can help you save more time and eliminate the need to repeatedly set the air pressure value. 5. Accurate LED digital pressure: The large LED display shows real-time pressure values and preset values, making it easy to read and observe tire pressure status. Maximum pressure is 150 PSI and auto-stop gives you smart inflation. No need to worry about over-inflating your tires. Multi-mode LED lights: The electric air pu