Automatic shutdown of coffee cup heater in 8 hours: The automatic shutdown function of electric cup heater can prevent any possible safety hazards caused by forgetting to shut down the machine. Do not touch the heating area when the heater is working. Note: Boiling liquid is not supported, and the heating speed of cold drinks is slow. Designed to keep your hot drink at a suitable drinking temperature, so 't expect it to heat your drink like a oven or kettle.There are two temperature settings for the desktop coffee heater: the first temperature level is 100 /40, and the high temperature is 140 /60. Corresponding to the blue indicator and the red indicator, the smart cup heater can keep your favorite hot drink warm.Mug Heater Coffee Heater 4.2-inch (about 10.7cm) Queen Base: Oversized base, suitable for most sizes of cups, mugs, glass bottles and bowls. Also suitable for most different mug styles and sizes, such as stainless steel cups, milk cartons, glasses, etc. This will be your favorite office gadget Tea heater with waterproof design: glass waterproof panel, no need to worry about occasional overflow. The coffee heating plate is easy to use and the surface is easy to wipe clean.Great coffee gift Christmas gift: Multi-function makes the desk coffee heater an gift for . Tea will be a great to show your concern to your , loved ones or on Valentine's Day, Thanksgiving Day, Christmas Day or other occasions.Plug Type: US Plug, it applies to Canada, , Mexico, Thailand, Taiwan, the , the Philippines and so on.Colour:blackVoltage: AC110VMaterial:ABSSize:120MM x 13MM Package Contents:1 x heater1 x English manualOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.