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- This ceramic mug is classic black with a white outline of a battery on it. Pour in your hot liquid - anything over 96.8F (36C) - and watch the green cells within the battery light up. As your beverage cools (or is ingested) the battery will fade into emptiness, reminding you that you need a refill.
- Ceramic mug changes colour when filled with hot coffee or tea
- Holds 10 ounces of your favourite hot beverage.
- Watch the battery "light up" when your mug is hot.
- Love your mug: hand-wash only. The extreme temperature of a dishwasher will destroy the colour-changing parts of the mug.
- Material: porcelain
- Size: 7.7cm x 9.2cm
- Capacity: 300 ml
- Weight: 450g
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