Electric Cooler Warmer Cup Fast Cooling Heating Coffee Milk Tea - Green Fashion it is tool free and

it is tool free and reusable

please do not leave the collar submerged in rain or wash the collar for a long time

and different brightness levels and effects

and flashing frequency of the nebula and starry sky

It will be a great Christmas gift for you

Electric Cooler Warmer Cup Fast Cooling Heating Coffee Milk Tea - Green Fashion it is tool free andType: Coffee Mug Warmer and Cooler, Electric Cooler Warmer Cup, Drink Cooler Cup, Drink Cooler for Office Desk, Coffee Warmer for Office Desk, Drink Cooler Warmer Cup Note: No built in battery, and the adapter is not included! Description: The electric cooler warmer cup lets you enjoy cold beverages anytime in the summer and keep the suitable temperature for coffee, milk, water and other beverages in the winter. Features: Large air vents on both sides