The Self Stirring Mug Can Mix the Liquid and Powdered Drinks Evenly. It Is Very Suitable for Coffee Powder, Tea, Chocolate Powder, Milk, Protein Shakes, Lemonade, Broth, And Many Other Lightly Mixed Beverages That Can Be Stirred ( Note: Can Only Be Used to Stir Liquid and Powder Drinks, Very Viscous Liquids and Large Particles of Lumpy Objects Can Not Be Used for Mixing ).
2 x AAA batteries required