SELF STIRRING MUG CAPACITY: Our stirring mug has a maximum capacity of 380ml. In order to prevent the water from overflowing when stirring, the precise scale line inside the cup is 300ml/10.15oz, so that the water will not overflow when stirring. If you use it as a regular water bottle, it can hold 380ml of water. If you choose to be a stirring mug, it is recommended that you pack no more than 300ml of water for stirring. EASY TO OPERATE: With advanced self-stirring technology, press the automatic stirring button on the cup, the propeller at the bottom will rotate, mixing the solute and solvent particles into a lovely foam. 20 seconds will automatically stop.Press and hold the start button for 1.5 seconds, the anti-sedimentation will start, so that every sip you drink is even. IP67 WATERPROOF: Self mixing coffee mug made of IP67 waterproof material and 304 stainless steel. It is very suitable for coffee, tea, hot chocolate, milk, protein shakes, lemonade and many other lightly mixed beverages that can be stirred. It is also easy to clean, Just use tap water to clean it. ELECTRIC MIXING CUP: The automatic mixing cup is the best and easiest way to mix hot or cold drinks! mixing cups with lids allow you to take beverages from the kitchen to the living room, bedroom, car, office, gym, school, etc. All Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution.