New, Unopened Wrapped Box Vistoo Revolutionary S3 Smart Mug with Lid VSITOO, is a design-led temperature control brand and technology platform whose mission is to revolutionize the way people eat and live. The award-winning VSITOO S3 smart coffee mug is the most popular coffee mug on the market, allowing you to set and maintain your preferred drinking temperature for hot beverages. Color: Black Exterior, White Interior Capacity: 300ml, 10 oz Liner Material: 304 Stainless Steel Details: Waterproof Level: IXP-7, Built-in Battery, Manual & Bluetooth App Control, Excellent Battery Life: last hours on a single full charge—or all day on the charging coaster, which keeps your coffee at the perfect temperature from the first sip to the last drop. SMART LED LIGHT: The LED temperature light bar indicates the heating process, and the aperture of the touch button show the current beverage temperature and battery power. Hand Wash Only , Extended Battery Life Thanks for looking! If you have any questions or requests -contact in closet or bundle.