Introducing our Temperature Control Heated Coffee Mug! With a 12 - oz capacity, it's crafted from food - grade stainless steel and a ceramic inner wall, ensuring durability and safety. The patented heating technology enables heating without a coaster and stops automatically when there's no water. The heating temperature ranges from 95 - 149°F, keeping your coffee at a constant temperature. It's app - controlled, offering two temperature control methods via the touch button or the app. This 2 - IN - 1 mug can heat your drink and charge your phone. Measuring 9.33 x 8.9 x 3.7 inches and weighing 2.47 ounces, it's perfect for home, travel, office, and more. Whether you're a coffee lover, camper, or working professional, this mug is a must - have, bringing you the convenience of hot coffee anytime, anywhere. Color: Iron Black.