Easy to tote and take anywhere: This smart coffee warmer is only the size of a palm, compact and portable, and can be carried anywhere Easy to use: This coffee mug warmer equipped with auto shut off switch. Just plug the adapter into the outlet, then place your mug on the warmer plate and the cup warmer will work auto, take the cup away, the cup warmer will shut off auto. No need for an extra operation. Suitable for most cups: The cup warmer plate is suitable for Metal, Ceramic, Enamel, Tile, High-Temperature Plastic and etc. Tips: Use a mug with a thin-wall, flat-bottom will get the best warming performance. Waterproof design: the heating plate was covered with a layer of thermal conductive glass without the need for security concern for the occasional spill and it is easy to clean. The best gift choice: beautiful and compact design, It is a great gift for Valentine, Thanksgiving, Christmas and other special occasions for lovers, fathers, mothers, wives, husbands, and all loved ones.