The TOPDON JumpSurge3000 JS3000 is a powerful USB car jump starter booster pack power bank with a capacity of 24000mAh and a peak amps of 3000Amp. It is designed for starting engines up to 12V and comes with a user manual, carrying case, charging cable, and clamps. This portable jump starter also features reverse polarity protection and a USB charger, making it a convenient and reliable option for jump-starting vehicles in China. With its compact size and high-performance capabilities, the TOPDON JumpSurge3000 JS3000 is a must-have accessory for any car owner.