The heating coaster uses a metal heating plate, which heats up evenly, 10W safe and low power, USB interface, microgravity induction switch, and the power is connected when the cup is placed; no matter hot or cold water, the water can be kept warm at the appropriate drinking temperature when placed on the coaster; it is small and lightweight, portable and travelable; colorful 3 colors, adding color to the cold winter.
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