Ember Temperature Control Smart Mug 2, 14 oz, Black, Up To 1.5-hr Battery Life - App Controlled Heated Coffee/Tea Mug - Improved Design

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.