Ever wish your coffee stayed hot on a long commute, or your soda stayed cold on a road trip? This handy gadget does both. Just plug it into your car's 12V cigarette lighter socket. Press the red button for heat (warms up to about 140°F) or the blue button for cool (can get down to around 21°F). It takes about 10 minutes to show a real effect, so be patient. It has safety features like automatic shut-off if your car battery voltage gets too low. Fits cups with a base up to 2.75 inches. The perfect companion for drivers, truckers, or anyone who spends time on the road.
