Mix your protein shakes, milk, coffee, and more with ease using the 400ML Electric Protein Powder Mixing Cup. This automatic shaker features a powerful 1200mAh battery and a sleek, portable design perfect for your gym, office, or daily use. Whether you're preparing your protein shake, blending a smoothie, or whipping up a cup of coffee, this shaker ensures smooth, lump-free results every time. The convenient USB charging makes it ideal for on-the-go use, while the leak-proof lid and easy-to-clean components guarantee stress-free operation. Stay energized and refreshed with this versatile mixing cup.