Designed for home or office, Ember Mug 2 does more than simply keep your coffee hot.  The temperature control smart mug allows you to set your preferred drinking temperature (120°F – 145°F), so you can enjoy your hot drink—just the way you like it— from the first sip to the last drop. Ember Mug 2's built-in battery maintains your chosen drinking temperature for up to 80 minutes, or all day with the included charging coaster. Capacity: 14 fl oz  Built-in battery to maintain your drinking temperature Battery life: 80 minutes, or all day on included charging coaster Ember Mug Charging Coaster 2 included Pairs with the Ember app. iOS and Android compatible Temperature range: 120°F – 145°F Ember Mug is safe to hand wash and submersible up to 1 meter in water Do not microwave