Ember's smart mug is still on sale after Cyber Monday. You can take off 27%, or nearly $40 to keep your hot drinks hot.

It pairs with a barebones mobile app for Android and iOS, as do the like-minded Ember Tumbler and Travel Mug 2 Plus, letting you lock in a temperature between 120 and 145 degrees Fahrenheit.

Ember is the self-heating mug that made me fall in love with self-heating mugs. It was among the first, and it's arguably the best — at least for anyone seeking ultra-precise temperature ...

For the time being, you can grab the internet-loved Ember Temperature Control Smart Mug 2, Amazon’s No. 1 best-selling tea and beverage warmer for $91, instead of $150 — a whopping $59 in savings.

We’re not referring to little red wagons or a Lite Brite. What we have in mind is a temperature-controlled Ember mug to keep coffee, tea, and other hot drinks at optimally hot temperatures.

That’s when the Ember Mug 2 can come to the rescue. This smart mug can keep your coffee at the perfect temperature until the very last sip! You can set this temperature in the app, with a range ...