Designed to be used on-the-go, the Ember Travel Mug 2 does more than simply keep your coffee hot. Our smart heated travel mug allows you to set an exact drinking temperature and keeps it there for up to 3 hours, so your coffee is never too hot, or too cold. Ember Travel Mug 2 is easy to clean and is safe to hand wash and submersible up to 1 meter in water. The leak-proof lid is dishwasher safe. Built-in Battery: 12 oz Ember Tumbler keeps your drink hot up to 3 hours on a full charge or all day on the included charging coaster Touch Display: Adjust temperature directly on the Travel Mug 2 and see temperature, mug name, and battery Control with Smartphone App: Set temperature and save presets, personalize mug with an LED color, receive notifications, built-in steep timer, and more Auto Sleep: Intelligently senses when to turn on/off. Automatically enters sleep mode when empty or after 2 hours of inactivity. Wakes up when it senses movement or liquid Easy to Clean: Updated scratch-resistant coating is safe to hand wash and rated IPX7 for full submersion up to 1 meter deep Perfect Gift: Gift to others or yourself; this is the perfect gift that is sure to surprise and delight NEW OPEN BOX-bought as a gift and my dad is not 'techy' enough