The temperature of the coffee / tea / beverage can be maintained at about 50 C,Easy to install, no driver, hot swap,A single on / off conversion system,Can be used for thermal insulation hot coffee, hot tea, hot soup, hot milk, hot drugs ... ... any hot drink insulation;Features:Easy to install, no driver, hot swapA single on / off conversion system,Small size, light weight portable;Low power consumptionSmall size, light weight portable;Power switch lights;Use of ordinary AC power, home and office can be applied.Specifications: new and high quality. Name: Tea Coffee Cup Warmer. Color: White. Size :( LWH) 11X11.5X2.3CM. 1 inch= 2.54 cm Material: ABS +Ceramic +Electronic component. Model: With US plug. Voltage: 110v. Apply For: Stainless steel cup, Mugs, Glass Cup, Feeding bottle. ApplicableMaterial: Cup must be a flat; stainless steel, ceramic or bagged milk drinks thermal conductivity material better heat transfer effect ofthe cup, fast, thermal insulation effect is good.Package Included:1x Tea Coffee Cup WarmerNote:1.There are slight difference between the picture and the real item caused by light brightness,hope you can understand.2.There may exist error due to manual measurement hope you will understand.Thanks. 3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..