The FLYLINKTECH 4000A Car Jump Starter is a powerful and portable power bank designed to jump start 12V batteries. With a capacity of 13200mAh, this IP67 rated device is compact and easy to use, making it ideal for vehicle maintenance and emergencies. The set includes a user manual and is manufactured in China by FLYLINKTECH. Perfect for those who need a reliable and convenient solution for charging and starting their car battery.