DescriptionBeautiful and compact design, keep the beverages warm all day long, it's a great gift for lover, dad, mom, wife, husband, and all your loved ones on Valentine's Day, Thanksgiving and Christmas, and other special occasions to show you care.Features- USB Color: Random. - Material: Aluminum, iron. - Size: About 10.30X10.30X1.60cm/4.05X4.05X0.63inch - Rated Voltage: 5V - Rated Power: 5W - Current: 1000mA - USB powered, low power consumption, can be used in office and dormitory. - Our electric mug warmer can slow down the cooling speed of hot beverages. - With anti-slip felt pad, prevent the coaster from moving during use. - Small size, lightweight, portable, you can carry and use it everywhere you go. - Can be used by yourself, or as a small gift to friends and family.