Desk Cup Warmer is made of tempered glass and aluminum alloy with a smooth surface and easy to clean. Waterproof Design Coffee Hot Plate Warmer can also be waterproof and the mute function keeps you from being disturbed while you work, Coffee Cup Warmer With Auto-Shut Off which is one of our most satisfying designs. Automatic Switch Our electric mug warmer can slow down the cooling speed of hot beverage, Maintain the beverage in the cup at 40° C-60 ° C . You only need to put the cup on and it will automatically heat up and the temperature is just right. More Applications Our Hand Warmer Mug For coffee, tea, hot cocoa, etc. Suitable for many different mug styles and sizes. Product Parameter Product Name: coffee warmer Voltage:110V / 50Hz Power:18W Specification: 110mm x 110mm Current:164mA Cord length: 150MM（Pure copper mass） Color: Black Material: Aluminum frame / Mirror glass panel Heat Scope: 104℉-140℉ TIPS: The insulation pad will not heating coffee, Desktop Coffee Warmer will only have the effect of heat preservation of coffee, so it is recommended that you, after washed hot coffee, can be placed in insulation MATS, It will keep your coffee temperature between 40 ° C - 60 ° C, if your coffee is the condition of low temperature, it is not heated, thank you for your understanding and support!