An curved arrow pointing right. Rejoice, coffee lovers. This high-tech Ember coffee mug claims it will keep your drink at the perfect temperature — down to the very last degree. Here's how it works.

If you're the kind of coffee drinker who requires multiple microwave session to get through a cup, the Ember Mug is built for ...

Save $49.96: The stainless steel Ember Mug 2 is on sale at Best Buy for just $99.99 — a 33% discount on its original $149.95 price. This self-heating mug rarely goes on sale, and will be back up ...

Save $30: Ring in December with endless hot cups of coffee and tea. The Ember Mug 2 is on sale for just $99.99 at Best Buy, for a 23% markdown of its usual list price as of Dec. 1. It's December ...