Features:[Useful]The automatic mixing cup uses fluid self-stirring technology to stir the liquid in the cup.[With Lid]With a sealed mug cover, no need to worry about liquid splashing. Lightweight and compact design, easy to carry.[Easy to Use]Just press the switch to quickly cool down and shake the drink.[Widely Applicable]It can shake and cool coffee, milk, juice, medicine, protein powder, etc. Suitable for men, women, the elderly, children, students.[Durable]Made of high-quality stainless steel assures years of leak free and safe stirring.