If you’re tired of returning to a cold cup of coffee or tea, the Ember Smart Temperature Control Mug 2 is a convenient solution. The mug keeps your beverage at your preferred temperature for up to 80 minutes or you can set it on the charging coaster to keep it hot all day. You can even control the mug right from your smart phone with the compatible app. | Ember 414ml (14 oz.) Smart Temperature Control Mug 2 - Copper