Designed to be used on-the-go, the Ember Travel Mug² 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 Mug² is easy to clean and is safe to handwash and submersible up to 1 meter in water. The leak-proof lid is dishwasher safe.