Ember Temperature Control Smart Mug 2, 10 oz, Stainless Steel, Up To 1.5-hr Battery Life - App Controlled Heated Coffee/Tea Mug - Improved Design

Absolutely love my Ember mug! Keeps my coffee nice and hot! Will never have to reheat in the microwave again.

I've had mine for 4 years so far n I thought I'd give a little feedback. Ybest cup I've ever bought n is still as it was when it came out the box, the battery is exactly the same capacity as it was to start with, theres loads of different options im the app it's too for various different drinks but I just use mine for coffee n it keeps it at my desired temperature, I can fall asleep n wake up n hour later n it's still the same temperature what more can you ask for, what an invention Downsides are the cost for the mug itself is just outrageous for a cup but it's worth it personally and the battery built inside it is eased quite high inside the mug so your not quite getting a mugs worth of coffee that you see, you probably loose a third in battery too apart from those 2 little things that I can livr with are the downside unfortunately, I hope that doesn't deter you because as I said, 4 years later n it's still like brand new and gets plenty of action too 👌🤫😉