The item is a simple and practical magnetic self-stirring coffee mug, which is made of stainless steel, PP material for safe to use. It is powered by batteries. Only to push the button to quickly mix and dissolve your coffee powder or chocolate milk. Take your drinking experience to the next level easily. Features -Color:As Shown -Material:Stainless steel, PP -Size:13.50X13.00X9.00cm/5.31X5.11X3.54in -Note:No battery contain. -Rated voltage: 5 V1A -Power:2W -Save time and efforts with stirring function that eliminates the need for manual stirring. - Enjoy the convenience and practicality of the electric operation that allows you to stir by pushing button. - The self-stirring coffee mug is very suitable for coffee, tea, milk, protein shakes, broth and etc., widely used. - Smooth surface and round edges, this mug is very easy to clean and does not hurt your hands and mouth. - This useful mug is not suitable for stirring thick, oatmeal and other solids that cannot be dissolved quickly. Package list: 1 x self-stirring coffee mug