Features1Stainless Steel Material: Crafted from 304 stainless steel, this self stirring cup guarantees safety, healthiness, and a robust lifespan. You can rely on it for years of use, assured of its durability and reliability. 2Convenient Automatic Stirring: With this automatic mixing cup, there's no need for a spoon. Simply add your favorite powder into the cup and press the key to enjoy your beverage. It's convenience at its best. 3Portable Design: Designed for portability, you can take your self mixing cup wherever you go. Whether you're at home, the office, the gym, or school, you can enjoy your favorite drinks anytime, anywhere. 4Long Lasting Battery Life: Equipped with a built in 300mAh lithium battery, this self stirring cup provides lasting power. Charged by a USB interface, you're ensured of long hours of use, no matter where you are. 5Multifunctional Use: Not just for coffee, this self stirring cup is for other beverages like shakes, protein powders, milk tea, butter, coconut oil and other drinks.SpecificationItem Type: Self Stirring CupMaterial: ABS, Silicone, 304 Stainless SteelBattery Type: Lithium Battery (Shipped with Built in Battery)Battery Capacity: 300mAhPower Supply: USB InterfaceCapacity: 380mlPackage List1 xSelf Stirring Cup1 x Straw1 x Charging Cable1 x User Manual