High-quality Material: The automatic mixing cup is made of high borosilicate glass, which is not easy to crack when suddenly cooled or quickly heated. The wooden handle and lid can insulate heat, do not keep hot and maintain the water temperature. Battery Powered: The automatic mixing cup is powered by two AAA batteries, so you do not need to change batteries frequently. It is more environmentally friendly and water will not penetrate into the battery area, making it r. Simple Operation: Press the button to start automatic mixing with long life. Easy to clean with tap water, but do not use dishwasher or soak completely. Automatic Stirring of Coffee Cup: Add your favorite coffee, milk, etc. to the mug, press the button and you can enjoy the drinks at home, office, gym, school, etc. Creative Gift: A beautiful mug is a nice gift. The gift for family, friends and colleagues who love coffee, hot chocolate, protein powder or other drinks that need to be stirred.