The Ember 16oz Tumbler Black is a state-of-the-art smart mug designed to keep your beverages at the perfect temperature for hours. Manufactured by Ember, a leader in innovative drinkware technology, this tumbler features precise temperature control via an intuitive app or touch interface on the device itself. The double-walled stainless steel construction ensures durability and insulation, while its leak-proof lid makes it ideal for travel or daily commutes. With up to 3 hours of battery life (or all day when placed on its charging coaster), you can enjoy hot coffee or tea just the way you like it anytime, anywhere. Ember is committed to sustainability through responsible sourcing of materials and energy-efficient production processes. By choosing this product, customers support environmentally conscious manufacturing and contribute positively toward reducing waste from disposable cups.