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Title: Heating Component is Worthless
Review: I don't know whether my car's cigarette lighter is somehow different from those in other cars, but it seemed to "burn out" the cord to my mug. The cord stopped working after only two weeks of use. They sent me a replacement, but it stopped working the very first time I used it! The mug looks great, and it does keep liquids reasonably warm, but the unique aspect -- the plug-in heating element -- was a complete failure for me.
