The Use of Color Changing Mug/Magic Cup Should Pay Attention to:
(1) is strictly prohibited into the microwave oven / dishwasher / disinfection cabinets, such as high temperature use.
(2) should not be under strong light exposure.
(3) should not be immersed in water.
(4) can not use a hard object to scrape / wipe the surface of the body surface image, otherwise it will lead to the loss of the cup body image.