The Battery Tender Jump Starter 030-2040-WH is a portable and compact device designed to jump start dead batteries in vehicles. It features a 12V lithium-ion battery with a capacity of 12000 mAh, capable of jump starting up to 20 vehicles on a single charge. The jump starter also has a USB port for charging electronic devices, a built-in LED flashlight, and a digital display for monitoring battery status. Its compact size and lightweight design make it easy to carry and store in a vehicle's glove compartment.