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Battery Coffee Mug

Battery Coffee Mug
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It is a magic sensitive Thermometer Heat mug, inject hot water to keep full battery, remind you drink more water to keep health!!
It is a Coffee/water Mug Packaged individually in an attractive gift box.
The unique feature is a printed heat sensitive battery which is designed to resemble an automobile battery shape. As hot liquid is pored into the mug the electricity grid turns green.

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