Feature:1. Easy to Operate: Just put the coffee powder into the stirring cup and pour the boiling water into the glass, one button operation, suitable for home, travel, office, business, picnic.2. USB Charging: The automatic mixing cup only needs to be charged with a USB cable, no additional battery is required, and it can be quickly fully charged in 1.5 hours, saving time, freeing hands, and being safe.3. Stainless Steel Liner: Self stirring cup is made of 304 stainless steel and food grade ABS plastic,double layer design, pouring boiling water into the cup will not be hot. It's easy to wash under running water, but don't wash in a dishwasher or in a full soak.4. Wide Applications: Self stirring mug is suitable for coffee, tea, hot chocolate, milk, protein shakes, lemonade or other mixed drinks, pastes, ice, oatmeal and other solidly that cannot be dissolved quickly.5. Quickly Dissipate Temperature: Magnetic stirring cup adopts the principle of physical stirring, which can quickly dissipate temperature while stirring quickly, without stirring with a spoon, which is easy to operate for the elderly and children.Specification:Item Type: Automatic Magnetic Stirring Coffee Mug.Capacity: 380MLBattery Type: Polymer battery 300mAh (included)Package List:1 x Automatic Magnetic Stirring Coffee Mug1 x Instruction Manual1 x USB Cable