Ember Temperature Controlled Mug

One of the most effective ways to stave off the cold is to warm yourself from the inside out with a hot drink, but even the best thermally insulated mugs and bottles won’t keep a drink warm forever. The $130 Ember Mug solves that problem with a built-in battery-powered heating element and sensors that can heat a beverage to a specific app-specified temperature and keep it there indefinitely, assuming you remember to occasionally charge the mug by setting it down on its charging pad.