- Self-Mixing Functionality: The automatic stirring mug effortlessly mixes powdered beverages at the touch of a button. Ideal for quickly blending coffee, milk, protein powder, and tea. Note: Not suitable for viscous liquids. - Durable Materials: Constructed from food-grade high borosilicate glass and a food-safe plastic PP lid and handle. This mug withstands temperature extremes from -30°C to 150°C, ensuring safety with no BPA content. - Dual Drinking Options: Enjoy your beverages with either a straw or straight from the cup. The USB rechargeable mixer cup accommodates various scenarios, making it versatile for everyday use. - Efficient Mixing: Equipped with a powerful motor for thorough blending in just 30-60 seconds. The automatic stirring feature ensures a smooth consistency every time. - Versatile Use: Perfect for protein shakes, coffee, tea, and any hot or cold beverage requiring mixing. The included plastic spill-proof lid ensures mess-free enjoyment. - Smooth Blending: The innovative vortex mixing system eliminates clumps, creating a smooth texture for your protein shakes, similar to that of milk. - Quiet Operation: The mixing process is designed to be quiet, operating without the disruptive clashing sounds typical of traditional mixers. - Leak-Proof Design: The screw-on lid and base feature a leak-proof seal, preventing any spills and ensuring your drinks stay securely contained. Use this mug for your morning coffee, post-workout protein shake, or refreshing iced tea. Its reliable performance and user-friendly design make it a must-have for anyone who enjoys perfectly mixed drinks.