Having trouble finding that perfect gift that you KNOW will be used? Look no further - Our heat sensitive, color changing Battery Mug. Who doesn't love coffee? The 10 oz ceramic mug changes color when filled with hot coffee or tea. Watch the battery "light up" when your mug is hot!
CAUTION: Hand-wash only. This product is NOT dishwasher safe. The extreme temperatures of a dishwasher will destroy the color-changing parts of the mug.
