1. Free-related description: This electric protein shaker cup is made of certain materials. Free-related (Here, the meaning of "free" is not clear in the context, so it is translated literally). It has a drop-resistant function and may not be damaged even if dropped. It also comes with a handle for convenient carrying. (Fully charge the electric shaker cup before the first use.) 2. Automatic stirring: With a relatively high rotation speed of 7000 revolutions per minute, there is generally no need to shake it manually. It stirs evenly without much clumping and is relatively easily absorbed by the body. Add warm water and detergent, turn on the machine, and the shaker cup can clean itself. Do not put the cup in the dishwasher. 3. Leak-resistant design: This protein shaker cup adopts a triple leak-resistant design for comprehensive protection. The cup lid is equipped with a rubber ring, which can effectively reduce water leakage. 4. Operation mode and clear dual scales: When working, press and hold for 2 seconds to turn on the device; click to stop stirring. It has a 60-second power-off protection function. The electric shaker cup can be fully charged in about 2 hours and can be used for around 45 days after a full charge (calculated based on using it three times a week). Electric stirring usually takes about 15 seconds for good mixing. 5. Dual-scale cup body design: The cup body has two scales in milliliters and ounces. Through the relatively accurate scales, you can quickly get the required capacity and avoid some cumbersome unit conversions. 6. Ideal gift: This cup can be a nice gift. It is suitable for family members, friends, and colleagues who like coffee, hot chocolate, protein powder, or other drinks that need to be stirred. It is appropriate for family morning coffee, office use, and travel, and can also be a good gift for occasions such as Father's Day, Mother's Day, Christmas, Thanksgiving, Halloween, Black Friday, and Mondays. 7. Electric shaker cup: Automatic stirring cup 8. Protein powder mixing cup: Stirring cup 9. Model: Shaker cup 10. Product name: Automatic stirring cup 11. Product capacity: 650 milliliters 12. Product net weight: 330 grams 13. Battery capacity: 1200 mAh 14. Motor voltage: 3 volts 15. Rated power: 7.4 watts 16. Rated voltage: 3.7 volts - 2 amps 17. Color: Blue 18. Material: ABS + PP 19. Dimensions: 12190196 millimeters 20. Package contents: - 1 automatic stirring cup - Only the above package contents are included, and no other products are included. 21. Note: Light reflection and different displays may cause some slight differences between the color of the items in the picture and the actual object. A measurement error of plus or minus 1 - 3 centimeters is allowed.