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Truly plug & play automatic installation.
Individual port over-current protection.
Temperature of hot drinks can be maintained at 40°after an hour.
This USB cup warmer can keep your beverage at the optimum temperature for drinking.
No drive, just plug it into a spare USB port on your computer and put your cup on this electronic coaster.
USB powered, no batteries needed.
Includes DC to USB cable.
Size opened: 12 x 12 x 2 cm
Cable length: 50cm
Note: Please make sure the cup's bottom is dry while using