CONSTANT TEMPERATURE INSULATION: This coffee mug thermos uses smart constant temperature technology, which can always maintain the temperature at 55°C, so you can enjoy a hot coffee even during a busy workday. Whether it's a cold winter or chilly nights, this coffee mug thermos can effectively keep your coffee at the perfect temperature, allowing you to enjoy a hot cup anytime. SPACE-SAVING: This candle warmer tray requires only the size of a palm, is compact, doesn't take up too much space on the table, and keeps your space tidy. Whether in a home or office setting, this candle warmer can be easily placed without taking up too much room. Allowing you to enjoy warm lighting or heating effects at any time while keeping your desk tidy and organized. Tempered Glass: The cup warmer panels are made of tempered glass, which is waterproof, strong, and wear-resistant. Automatic Function: The candle warmer automatically heats the cup of water and then automatically shuts off, making it safer to use. The USB candle warmer is compact and lightweight, making it a must-have for home, office, and outings. Convenient and Smart: Exquisite design, USB insulated coaster, unique appearance, giving people a distinctive style. Supports USB connection with PCs, laptops, power banks, and other power devices with a USB port.