WAGAN 12V Jumpboxes are a must-have in any vehicle! If your car battery dies you have to wait an hour for AAA to get to you or hassle a stranger to jump start you with their car. Not anymore! Keep a WAGAN jumpbox in your car and always be prepared in case of an emergency. You can jumpstart your car on your own and be back on the road in no time! Some of the larger units function as a multi-purpose power source and have a built-in radio with iPod hookup and can also be used to power items such a laptop, boom box, camcorder, portable fridge, and more. They are great items to have not only in emergencies, but also for tailgating, camping, and road trips!