The 300ml coffee mixing cup is made of stainless steel & ABS plastic, and the bottom silicone is stable and non-slip to use. With a sealed mug cover, no need to worry about liquid splashing. When you want to make coffee, you only need to press the switch to quickly get a delicious coffee. Features: [3 Modes]You can choose the 30s to stir coffee or choose 60s to mix oatmeal, and 30 min to quick cooling hot water. [Useful]The automatic mixing cup uses magnetic force and fluid self-stirring technology to stir the liquid in the cup. [Practical]This self-stirring mug can fully mix water and powder which is very convenient and easy to cleaning. [USB Rechargeable]This self-stirring coffee mug equips with a 400 mAh battery. High capacity batteries charge the electricity once can ensure use a long time. [Widely Applicable]It can shake and cool coffee, milk, juice, medicine, protein powder, etc. Suitable for men, women, the elderly, children, students. Specifications: Color: White; Black (Optional) Material: Stainless Steel, ABS, Electronic Component Capacity: 300mL Battery: 1*3.7V, 400mAh lithium battery Modes: 30s, 60s, 30min Occasion: Home, Office, Outdoor, etc Package Size: 10.5*10.5*20cm / 4.13*4.13*7.87inch Package Weight: 460g / 1.01lb Package List: 1 * Self Stirring Mug