Designed for home or office, the new Ember Mug (Generation 2) does more than simply keep your coffee hot. Our smart mug allows you to set an exact drinking temperature, so your coffee is never too hot, or too cold. Maintains your chosen temperature for 80 minutes – so your hot beverage stays perfect. Easy to clean. Mug is safe to hand wash and submersible up to 1 meter in water. Built-in battery to maintain your drinking temperature. Includes new, redesigned charging coaster. 14 fl oz (414 ml).