Features: -With an individual magnetic capsule that uses magnetic stirring technology to quickly mix liquid and powder evenly. -Built-in 400mAh rechargeable battery, each full charge can be stirred multiple times, eliminating the trouble of frequent battery replacement. -The interior is made of high-quality 304 stainless steel, the outer shell is made of ABS material, the double-layer design ensures that you will not scald your hands when pouring boiling water. -The magnetic capsule at the bottom of the cup can be quickly removed for easy cleaning and ready for next use. -Perfect for instant coffee, hot chocolate, milk, protein shakes, honey and other liquid and powder drinks, whether hot or cold. .