Cup Warmer Thermostatic Temperature for Coffee Milk Tea Water DC 5V USB Heating Pad Mug Heater For Home Office Desk

*Input power must be ≥15W (≥5V3A).Otherwise,
the lack of energy will not achieve the effect.

*This products is for keeping hot drink warmly.
It can't be boiled and heating the drink or it can't
be making hot for cold drink.