Feature: 1. RECHARGEABLE DESIGN: Built in 300 mAh high capacity battery, no need to replace the battery, more environmentally friendly, water will not penetrate into the battery area, more secure. 2. EASY TO OPERATE: Self stirring coffee mug is easy to use, double click the button to turn it on, the stirring mug starts running, click the button again to turn off the power. 3. EASY TO CLEAN: The rotor is magnetically attached, the small rotor can be removed during cleaning, the automatic magnetic cup can be cleaned directly under the faucet without worrying about water leakage. 4. APPLICATION: Our coffee stirring cup is suitable for stirring coffee, creamer, tea, hot chocolate, milk, protein shakes, lemonade, syrups, frosting, or other lightly blended beverages that you can stir. 5. WIDELY APPLIED: This coffee stirring cup with lid is suitable for office, car and home use, fits most car cup holders. Lightweight and compact design makes it easy to carry in your bag or luggage. Specification: Item Type: Self Stirring Coffee Mug Material: ABS, Silicone, Stainless Steel Capacity: 400ml Waterproof: IP6 Battery: 300mAh Polymer Lithium Battery (included) Size: Approx. 8.5x17.5cm / 3.3x6.9in Gross Weight: 315g / 11.1oz. Package List: 1 x Mug1 x USB Cable Note: All data are measured manually, and there are certain errors in the measurement results.