The 12-oz. Retro Heated Travel Mug features an analog temperature gauge that tells you exactly how hot your coffee or tea is before you take a sip. Best of all, it plugs into your car's cigarette lighter to keep it deliciously hot for your whole commute - up to 160°! Pour in a cold beverage and this amazing cup will even heat it up. Thermal insulation retains the heat long after you've unplugged the mug. Features on/off switch, ready light and non-skid rubber base. Currently available in red and black. Plugs into an auto cigarette lighter.