Features: 1Under action of a magnetic field, the nature of water changes and becomes magnetized water with biological effects. 2With one?button switch, it can easily stir milk and coffee, suitable for home bedroom, study room, office. 3Selected high?quality stainless steel + food?grade plastic materials, safe and non?toxic, can rest assured to use. 4Built?in rechargeable battery, which can be used for one month after 2 hours of charging (combined with frequency of use). 5With a lid, it is safe and leakproof, and can be used as a water cup by inserting a straw. 6The bottom of cup adopts polyvinyl chloride pad, good anti?skid effect, uniform mixing and convenient use. Condition: 100% Brand New Item Type: Coffee Stirring Mug Material: Stainless Steel + Food-Grade Plastic Capacity: About 400ML Rated Voltage: 3V Rated Power: 3W Built-In Battery: Lithium Battery 1000mAh Weight: Approx. 406g / 14.3oz Size: Approx. 14x9cm / 5.5x3.5in Package Included: 1 x Mug 1 x USB Cable 1 x Lid 1 x Mixing Rod