●CONSTANT TEMPERATURE: The mug warmer helps you keep your coffee, milk or other beverages at a constant temperature of about 55°C to keep your favorite drinks warm. The warmer is only used to keep warm and does not have the function of boiling water ●MATERIAL: The product is made of high temperature plastic + aluminum plate, the diameter of the heated surface is about 3.2 inches, the height is about 0.63 inches ●EASY TO CARRY: USB interface for easy charging, beautiful and compact for easy carrying, and 1.2m cord length, no matter where you put it, giving you more freedom to move anywhere ●SUITABLE FOR MOST CUPS: Suitable for most flat bottom cups, such as glass cups, stainless steel cups, ceramic cups, boxed milk, metal cups, high boron milk bottles, glassware cups, etc. The use of thin-walled, flat-bottomed cups have the best insulation effect ●DESK ACCESSORIES: Our cup warmer is small and beautiful, you can give it as a gift to mom, dad, colleagues and friends to let them feel your sincere care. Its a cool and great desk gift!