1. Emergency starter: The 1000A peak current emergency starter can quickly jumpstart most 12.0V vehicles with petrol or diesel engines up to 4.0 liters. 2. Lowtemperature starts: Equipped with a performance chip, it is coldresistant and frostproof, ensuring reliable performance in lowtemperature environments. The builtin temperature protection resistor allows it to function flawlessly even under significant temperature variations. 3. Air compressor: It doubles as an inflator with multiple nozzles, making it easy to inflate car/motorcycle/bicycle tires, balls, swimming rings, and more. Features preset tire pressure and autoshutoff when fully inflated. 4. Builtin battery and LED light: The capacity builtin battery has a long lifespan and can serve as a power bank to charge phones, tablets, and other devices. The LED light supports illumination, SOS mode, and flashing, making it ideal for nighttime use.