Three-speed temperature adjustment + black and white - constant temperature cup 55 degrees smart water heater Electric heat pad Elegant design, compact size, perfect for your office. If you often forget to drink your coffee and end up with a cold, this mug is for you, not only to keep your coffee hot, but also as an art on your chalkboard. Auto Shut-Off The electric hot water bottle features an 8-hour auto shut-off control for added safety, don't worry if you forget to turn it off. Portable Coffee Warmer Lightweight, small in size, easy to carry , suitable for most stainless steel cups, baby bottles, ceramic cups, glass cups, etc. (not suitable for thick bottom cups). Perfect for home and office to keep you warm on cold days. Perfect gift Mug warmer, can be used with flat bottom mugs. Make sure the bottom of your cup is in full contact with the platform for more efficient heating. It is the perfect gift for birthdays, Valentine's Day, Mother's Day, Father's Day, Thanksgiving, Christmas and other special occasions. Note: The data are all manual measurement, please Please allow 1 - 3cm error, due to the light and display difference, there will be some color difference, depending on the physical object received Shipping Quantity: (according to the main picture)