Check the listing for details. EMBER Temperature Control 10 oz. 259ml Smart Mug 2 Black Mug GREAT CONDITION. Color: Black, Condition: Used. Listed at 39.99 USD. The EMBER Temperature Control 10 oz. Smart Mug 2 in Black is a sleek and innovative mug designed to keep your hot beverages at the perfect temperature for longer. Made of stainless steel and featuring an LED display, this mug offers features such as the Ember App for easy customization. With a capacity of 259 ml and a solid black color, it is suitable for adults and teenagers alike. The mug is a great choice for those who enjoy hot beverages and appreciate the convenience and style of a smart mug. Hand wash only to maintain its quality and longevity.The EMBER Temperature Control 10 oz. Smart Mug 2 in Black is a sleek and innovative mug designed to keep your hot beverages at the perfect temperature for longer. Made of stainless steel and featuring an LED display, this mug offers features such as the Ember App for easy customization. With a capacity of 259 ml and a solid black color, it is suitable for adults and teenagers alike. The mug is a great choice for those who enjoy hot beverages and appreciate the convenience and style of a smart mug. Hand wash only to maintain its quality and longevity.