Coffee game changer Heats evenly and safely without wasting excess electricity, make your coffee always warm for you.
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Patented product Anywhere theres a USB port, you can connect to the heating sleeve cup holder. (Note: Not rechargeable, no built-in battery in the cup holder sleeve)
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Graphene rapid heating technology. Flat, foldable, and very portable, soft, fast, stable, larger heating area.
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