Battery Color Changing Mug

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Nothing is sadder than an empty battery. All cold and lifeless, it needs rejuvenation. Luckily, you filling up your cup juices up morph mug battery!  As the morph mug battery gets hotter, its energy level increases. This charming display of vitality also lets you know that your beverage is still hot hot hot. This mug is heat sensitive and color changing. The battery is white until you pour a hot beverage in the cup and the battery turns green.

  • Magic battery color changing mug
  • When pouring hot water, the black cup with battery image will change to green image
  • When the cup slowly cooling, the cup will change to black cup
  • Mug is not safe in dishwasher or microwave
  • A great choice as a gift for your friends