Koolatron 12V USB Heated Insulated Travel Mug, 17 oz, Stainless Steel Portable Thermal Tumbler

Enjoy a hot cup of coffee or a cold drink any time of day with the 1L 12V Insulated Vacuum Flask from Koolatron. Not only does double-walled vacuum insulation keep drinks at their ideal temperature for longer, this portable flask has a built-in heater to ensure your coffee, tea, or soup stays hot for as long as you want. Plug the 6 ft (1.8 m) power cord into your vehicle's 12V receptacle to use in heating mode and take your lunches and coffee breaks to a whole new level.