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.

It’s just not the same when it gets cold, though. 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!

Enter Ember, and its "smart mug." Unlike your dumb mug, Ember's cup can keep your drink at a stable temperature of your choosing, ranging between 120˚F and 145˚F. You set the temperature in the ...

including a dazzling red that benefits charity and various metallic choices (the latter with even higher prices, alas). There are 10 oz. Ember mugs too; they're priced $30 less. Regardless of size ...

For comparison, the Ember mug has one: It starts heating the moment ... it will illuminate blue, orange or red to indicate the current temperature range of the coffee. (It will also flash red ...

Keep yourself warm and cozy with the brand’s range of smart mug warmers, tumblers and bottles. They’re pricey, to be sure, but they just got a discount during Ember’s Black Friday sale.

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.