This cup creates a strong twisting force when you press the button. It easily stirs viscous, granular liquids and mixes drinks quickly and thoroughly. It has great power and a speed of 7,000 revolutions per minute, making it easy to use. Both the mixing cup and stick are easy to clean and the lid can be rinsed with water. However, it is recommended not to soak them in water. The electric high speed stirring cup is IPX67 waterproof and easy to clean. The automatic stirring coffee cup can be used by installing only 2 AAA batteries (not included). To remove the battery cover while installing the batteries, pull out the orange clip on the edge of the cover, then hold the cover with both hands and turn it counterclockwise to install the batteries. If you notice that the self-stirring mug stick is slowing down or not spinning at all, insert the silicone connector fully into the stick to prevent the silicone on the stick from rubbing against the silicone on the lid, which could cause the stick to malfunction. You can use this mug to make any of your favorite drinks, from milk tea to coffee to milk and honey. It will automatically mix them for you. Just wash it with tap water and it's ready. A quick way to enjoy your drinks. Share the joy of this amazing mug with your family and friends. Item Name: Electric Mixing Cup Material: Wood, Glass Pattern: Plain Capacity: 400ml Product Category: Coffee Cup Power Supply: 2 AAA Batteries (Not Included) Product Power: 1W Features: Self Stirring, Portable, Wooden Handle Size Details: Bottle Diameter: 14.5cm/5.71" (Approx.) Height: 10.5cm/4.13" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Electric Mixing Cup