About Product : For 5V USB power supply Wipe off the water on the mug. Connect the product to the USB port of the computer or charger. Use the always on port. Put the mug on the beverage warmer. The light is on when the product is working normally, and keeps the temperature at 100-140 degree Fahrenheit Use mug with flat bottom and preferably metal bottom for best results. Does not auto shut off , turn off when not in use. Not for heating cold beverages, only to keep them warm.
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1 month ago
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