A Work Essential: Ember Temperature Control Smart Mug 2 This Ember Temperature Control Smart Mug 2 ($130) will keep their drink at their desired temperature for however long they decide to nurse it. It's perfect for those who need a warm cup of coffee to get through the work day. They can customise the settings all in the accompanying app. Image Source: amazon.com Ember Temperature Control Smart Mug 2 $130 from amazon.com Buy Now