Using this electric shaker cup is a breeze. First, open the cup and pour in your protein powder or other nutrition powder. Then add some water or your preferred liquid. Close the cup tightly. Press the power button, and the cup will automatically mix the powder and liquid for you. When it comes to cleaning, simply rinse the cup with warm water after each use. Avoid submerging the electric parts in water. Keep the cup in a dry place when not in use. If the battery runs out, replace it with the free battery that comes with the set. This way, you can always enjoy a well - mixed drink during your fitness routine.