Self Heating Coffee Mug, 16oz Smart Heated Coffee Mug, 150 Min Battery Life - Hot up to 149℉ Temperature Control Coffee Mug Warmer, Gifts for Women and Men

This isn't KEEP WARM, this is KEP WAM and it keeps your beverage vedy, vedy WAM. Should be KEP HA because it keeps your beverage vedy, vedy HA. I absolutely love this wonderful Chinese product. I expected it to be a flop, but to my surprise the quality and craftsmanship is excellent. The battery lasts several hours, but keep it on the base with the white light on and it stays hot indefinitely. Excellent product and highly recommended.

I bought this as a gift for my husband and he absolutely loves it! He can pour cold coffee into it and it warms up in a short amount of time. He has talked on multiple occasions on how hot the coffee gets and says it is one of the best gifts he has ever received. It keeps his coffee hot and works as intended. He’s had it for 2 months now and is still a fan!

ANOTHER UPDATE The mug completely died right after I wrote the last update (that same day) and won’t turn on at all (I suspect tea leaked inside & fried it), so now it’s just a very expensive plain mug. Still haven’t heard back from the company and no way else to contact them, so strongly recommend NOT getting this mug if you want one that works for more than about 80 days. UPDATE - LESS THAN 3 MONTHS LATER Shortly after purchasing the mug, the plastic charger warped a little bit, which wasn’t too bad as it still worked, but was somewhat worrying. And now - the battery life is very poor. Sometimes the mug won’t turn on at all. Right now it’s sitting on the charger, not charging, or keeping the drink warm - it’s basically just acting as a plain mug. In addition, and most worrying of all, when it does turn on, liquid seems to leak from the bottom where the metal charging ring are. It’s *not* condensation - it’s the drink. Amazon refers to the company for warranty information, but the company does not exist online & I can’t find any way to contact them (much less look up warranty information). I’ve sent an inquiry via Amazon but haven’t heard anything back yet, either from Amazon or the seller/manufacturer. Based on this, I strongly recommend against buying this mug. =========== This mug is great! There are a few minor issues but they are not big enough (to me) to deduct a whole star. I was originally gifted an Ember mug, which I loved. It did a fantastic job keeping my tea hot so that I actually finished drinking it instead of throwing away cold tea. But it was very easily scratched when I used a spoon to mix the sugar. I decided to get another mug and found various options on Amazon. I selected the Kepwarm based on the reviews and also the fact that it was half the price of the Ember mug. When it arrived, I was surprised at how big it was, and wasn't sure if it was too big - but after using it, I love the size. The Ember was too small (when I used the Keurig, the Ember mug was filled to the brim which made carrying it back to my desk difficult). The controls on the Kepwarm mug are easy to use and right on the side of the mug. (The Ember mug off/on switch is on the bottom, which makes it difficult if there is any liquid in the mug, and it was very hard to press, possibly because I had to press it while keeping the mug upright. In addition, the mug also sensed when there was liquid in it, even if I was just soaking the mug, so sometimes, even when I turned it off, the mug turned back on and drained the battery.) The Ember mug connects to an app to select the temperature, but I found the Kepwarm system (right on the mug itself) much easier to use. The 2 main drawbacks to the Kepwarm mug are (1) the lid doesn't have a ventilation hole, so can be difficult to use, and (2) the handle is fairly skinny and not as comfortable to hold. But they are both VERY minor considerations (the handle could be more comfortable if it was a little thicker, but it's not necessarily UNcomfortable... and I just don't bother with the lid because the mug keeps the drink warm anyway). So I heartily recommend this mug!

Works well. Keeps my tea warm. Highest setting is too hot, so recommend the first or second option for perfect drinkable beverage. Size is perfect, it is easy to use. Love that it shuts off automatically.

What a blessing! Hate cold coffee - constant trips to the microwave no more! This is a beautiful mug - feels great in the hands - cool, not hot. Coffee stays hot for hours. Wish I had found this years ago.

Great for keeping coffee, tea, hot chocolate warm without having to be tied to a warming plate. It’s very convenient to carry around and still have a warm drink. It’s a bit pricey, but I’m enjoying it.

Well I’m not a normal person using it for coffee allll dayyyyy lonnnng. I use it for my bedroom night routine. I fill it with cool spring water and a teabag of decaf earl grey tea with walker’s shortbread. I turn it on at high and in the charging coaster. By the time I’m ready for bed and my current book ( not a stinky kindle) my tea is ready to enjoy and turn it to the lowest level. Never failed yet 🤞( crossing fingers). It holds an incredible amount of liquid and really easy to rinse it out after the tea. The button is really easy to find with just using your fingers. It does seem really good for the insulated container. Seems like a long time before I need to turn it on the heat up my tea at the right temperature. Hopefully this will survive a very long winter season. Sometimes the only place that feels warm is my bed so of course I will keep and use it constantly on days like that. Never needed to use the shut off system. I don’t dawdle with my beverage. I’m also planning on using it outside for mulled wine or spiced cider when enjoying a bonfire. 🔥 I’ve heard from people that have some that cost two or three times more than on this one and they crapped our in a month so definitely worth every penny I’ve spent on this.

The cup does just what I wanted it to do--keep my coffee warm to the last drop. It is easy to use, not too heavy, and doesn't feel like metal on your lips. Very pleased.