1. Free-related description: This electric protein shaker cup is made of high-quality materials. Free-related (Here, the meaning of "free" is not clear in the context, so it is translated literally). It has a drop-proof function and won't be damaged even if dropped. It also comes with a handle for easy carrying. (Fully charge the electric shaker cup before the first use.) 2. Automatic stirring: With an ultra-high rotation speed of 7000 revolutions per minute, there's no need to shake it manually. It stirs evenly without clumping and is more easily absorbed by the body. Add warm water and detergent, turn on the machine, and the shaker cup can clean itself automatically. Do not put the cup in the dishwasher. 3. Leak-proof design: This protein shaker cup adopts a triple leak-proof design for all-round protection. The cup lid is equipped with a rubber ring, which can effectively prevent water leakage and ensure 100% leak-proof. 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 2 hours and can be used for 45 days after a full charge (calculated based on using it three times a week). Electric stirring only takes about 15 seconds for perfect mixing. 5. Dual-scale cup body design: The cup body has two scales in milliliters and ounces. Through the accurate scales, you can quickly get the required capacity and avoid cumbersome unit conversions. Perfect gift: This cute cup is an excellent gift. It's the perfect present for family members, friends, and colleagues who love coffee, hot chocolate, protein powder, or other drinks that need to be stirred. It's suitable as a gift for family morning coffee, office use, and travel, and is also an ideal gift for occasions such as Father's Day, Mother's Day, Christmas, Thanksgiving, Halloween, Black Friday, and Mondays. Electric shaker cup: Automatic stirring cup Protein powder mixing cup: Stirring cup Model: Shaker cup Product name: Automatic stirring cup Product capacity: 650 milliliters Product net weight: 330 grams Battery capacity: 1200 mAh Motor voltage: 3 volts Rated power: 7.4 watts Rated voltage: 3.7 volts - 2 amps Color: Blue Material: ABS + PP Dimensions: 121×90×196 millimeters Package contents: 1 automatic stirring cup Only the above package contents are included, and no other products are included. Note: Light reflection and different displays may cause 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.