Feature:1. Under action of a magnetic field, the nature of water changes and becomes magnetized water with biological effects.2. With onebutton switch, it can easily stir milk and coffee, suitable for home bedroom, study room, office.3. Selected highquality stainless steel and foodgrade plastic materials, safe and nontoxic, can rest assured to use.4. Builtin rechargeable battery, which can be used for one month after 2 hours of charging (combined with frequency of use).5. With a lid, it is safe and leakproof, and can be used as a water cup by inserting a straw.6. The bottom of cup adopts polyvinyl chloride pad, good antiskid effect, uniform mixing and convenient use.Specification:Condition: 100 percent Brand NewItem Type: Coffee Stirring MugMaterial: Stainless Steel and Food-Grade PlasticCapacity: About 400MLRated Voltage: 3VRated Power: 3WBuilt-In Battery: Lithium Battery 1000mAhWeight: Approx. 406g or 14.3ozSize: Approx. 14x9cm or 5.5x3.5in.Package List:1 x Mug1 x USB Cable1 x Lid1 x Mixing RodNote:1. Please allow 0and 8209 2 cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. The stirring rod should be added with water before use. Don't take it with your hands as it will easily lose its magnetism.