Product features:1, Please use the form a complete set of ceramic cup, or cup, and the diameter of 80 mm below the tank.2, Heat preservation, can keep the cup drinks within the temperature at 35 to 40 degrees Celsius.3, Refrigeration, can make a cup of drink temperature keep in 11 to 17 degrees Celsius.Method of use:Will plug connected to external power supply first, and then place the cup or jar in the heat preservation cooling chassis, toggle switch at the same time. (to the left toggle switch, is in a state of refrigeration, refrigeration indicator; toggle switch, right in the insulation state, heat indicator).1, Please pull the plug after using.2, Switch to the "middle" position.Maintenance methods:Pull out the plug, insulation, insulation for chassis fully cooled, with a soft cloth to wipe the appearance, refrigeration, with a soft cloth to wipe the surface water and other parts.