The 20000MAH Car Emergency Battery Jump Starter Start Booster with LED Power Bank is a versatile and compact device suitable for starting vehicles in emergency situations. With a peak current of 400A and a start current of 200A, this jump starter is capable of efficiently powering up cars. The portable design, measuring 15 x 8 x 2cm, makes it convenient to carry around, while the LED light and USB port provide added functionality for lighting and charging purposes. This black ABS material device also features a warning light and SOS lighting, making it a practical and essential tool for any vehicle owner.