<p>Meet the world's first temperature-controlled mug, designed to keep coffee and other hot beverages at your ideal sipping temperature. Adjust the heat with Ember's mobile app – or opt for the handy preset of 135°F. The smart mug's integral battery maintains your chosen temperature for 80–90 minutes (depending on mug size). For all-day use, simply keep your mug on the charging coaster.</p> <ul> <li>Smart LED feature on mug and Ember's mobile app indicate when beverage is ready to enjoy.</li> <li>State-of-the-art mobile app also lets you adjust temperature, add customized drink presets and more.</li> <li>Auto Sleep function senses when to turn heating on and off.</li> <li>Built-in battery maintains perfect sipping temperature.</li> <li>Includes convenient charging coaster.</li> </ul>