Electric Heated Stainless Steel Travel Car Coffee Mug w/ 12v Adapter This sturdy 12v self-heating, stainless-steel mug will keep coffee, tea, soup or even chilli hot on even the longest car trips. The included detachable lighter adapter means your drink will be hot no matter how long the journey ahead is. Featuring a no-spill lid, this thermally insulated mug also works great for keeping cold drinks cold. This heated travel mug also makes a great gift