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Sometimes when I take a quick swig of my coffee my tongue gets burn, but finally someone invented a cute sensor in a mug xD So if you put a drink with more than 36 degrees Celsius the image will appear, so you`ll know if it`s hot or not xD Then as you drink your coffee or other drink the battery will start to fade from the top. It`s a smart invention with a lovely design of a battery. This mug costs $28.
Have you ever heard about Battery Mug with temperature sensor?
What did you think of it?
Would you buy it?