APXC Ceramic Cup Battery Coffee Mug Battery Morph Mug Battery Color Changing Mug 1.Style:Creative Temp Sensing Mug 2.Type:Water, Beer, Others, Fruit Juice, Coffee, Milk 3.When adding water temperature exceeds 43 degrees, the pattern changes will occur magical 4.When the temperature returns to 43 degrees or less, the pattern returns to normal. 5.2 kinds of different patterns between hot and cold, you can change back and forth.