OCOOPA Hand Warmers Rechargeable 2 Pack, Magnetic Electric Handwarmer, 16 Hrs Warmth 4 Levels Heat Up to 137℉, USB-C Portable Charger 5000mAh, Raynauds, Golf, Tech Gifts for Men, Union UT2s(MagTwins)

Works well. Charges and stays charged. Easy to use and good size. They get very warm.

These work great. Get really hot fast and cool down fast. I work outside and way hotter than the hot pockets.

This product is really good. They charge fast, keep in mind you need to make sure the charger you use is a good one, to verify, one of the blue lights will turn green to indicate fast charging as label in the instructions (look at last picture for reference). I feel like most of the other reviews used a slower charging setup. I use my Google pixel 7 charger which is USB-C to USB-C. You can also use the cables provided but you need a good power box. The heat it provides is excellent, I live in Chicago so the weather is cold and these work great. I really like the fact that it can be on the highest heat setting and once I turn them off it takes seconds to cool down, pretty neat feature so I can store them away without risking heat damage to anything. I also like the ability to use these as a power bank, Great feature. I like that it also comes with 2 charging cables and a carry bag. Overall really solid product, great heat output with multiple heat setting and great additional features and it's not heavy. I would buy again. I recommend this product. Now on the downside.... First in foremost the instructions are terrible and can be updated. This version of handwarmers which are the gamer edition don't come with the dual USB-C, meaning I have to use 2 different chargers or charge one at a time which is just inconvenient.

Based on information that I gathered from going down the online rabbit hole that is the answer to the question "what is the best rechargeable hand warmer," I settled these. I wanted to use them as glove warmers. When separated, each warmer is about the size of two disposable lighters, too big to go in a glove. This is why I only gave them four stars. They do get incredibly warm very quickly and I like to use them while I am at work to warm up my fingers. I have very cold-blooded hands, and even with fingerless gloves on my hands get chilled. These hand warmers get so warm on high that they will warm my hands through the gloves! The magnetic feature is a bit of a gimmick, but it does turn the warmers into one larger unit that will still heat while they are put together. It should also make it harder for me to lose one of the warmers. They charge as two separate pieces, which is not a big deal, but they came with two charging cords and only one single-outlet charger "brick." A dual-outlet charger brick would have been a much better option. I haven't used the power pack option to charge my phone, so I can't comment on how well they work for that purpose. Overall they are very good warmers, and the magnetic feature is surprisingly useful. I just wish that they were thin enough to fit inside a glove. They might just barely fit into a really large mitten. Wish I could give them five stars, but I can't use them for exactly what I wanted and I had to come up with a second charger brick in order to charge them both at the same time.

Wife loved them can keep in her coat with them on and stay warm. They aren’t bulky either and the fact you can connect them makes it easy to store them without loosing them.

Update edit 1/26 The seller reached out to me after my review offering to make things right. They offered to send me a replacement. Not only that, but they sent me an upgraded model to meet my needs (longer battery life & more heat) Not only that, but it was all at their expense. For that kind of value, I have to update the review to 5* ----- Previous review: I purchased another handwarmer from this company 5 years ago at about the same price. The only reason I give it 2* not 1* is the physical quality of the product is very good. Nice packaging and feels premium to the touch. However, the rest is downhill from there: 1- Heat is not good enough. Heat setting number 3 is the same heat as the lowest heat setting on the old one 2- Battery life is terrible Heat setting 2 (IMO the minimum) lasts about 2 hours only. Significantly less than advertised. My old handwarmer lasts more than double the duration on its lowest setting (which is significantly warmer) 3- It's a smaller than it looks If your hand size is average or above, you will not like the fit of this You will need to keep rotating it to heat either fingers or palm of your hands, not both. Overall, very disappointed that the product I purchased from them 5 years ago is so much better in many ways than their new product in 2025.

These are very good at keeping you warm but not very durable so don’t drop them. Good size, not too bulky, plus can charge your phone!

Wonderful in the winter and lasts for 3 hours on medium heat, 4 hours on low. Used them as cold as 10° walking around the woods. That's without the thermal retention bag they come with. Just keep em in your pockets. Only reason for 4/5 stars is they take a long time to charge. 4 hours+ when they're dead. They don't support "super fast" charging bricks. Only works with lower power chargers

Ich bin super zufrieden mit dem Ocoopa Duo Handwärmer! Er liegt gut in der Hand, wird schnell warm und hält die Temperatur lange. Besonders praktisch sind die vier Heizstufen, so kann man die Wärme je nach Bedarf anpassen. Die Akkulaufzeit ist für unterwegs wirklich gut – ich nutze ihn beim Spaziergang, beim Winterspaziergang mit dem Hund oder beim Warten im Freien und bin immer wieder begeistert, wie zuverlässig er wärmt. Die Verarbeitung wirkt hochwertig und robust, und das kompakte Design passt problemlos in jede Jackentasche. Aufladen per USB-C ist unkompliziert, und der Warmhalteeffekt ist deutlich spürbar – selbst bei richtig kaltem Wetter. Für alle, die schnell kalte Hände bekommen, absolut empfehlenswert!

My wife loves using these to warm her fingers when I'm driving. Perfect size and stows away easily in her cup holder. Also great for when you don't have a heated steering wheel, to warm up after brushing off the snow from your vehicle! No issues with the battery life so far, we just plug it in after a week of using it for 20 minutes each day. The magnetic two piece design is well thought out, took no time at all to get used to splitting them and pressing the power button even with gloves on. And can even slip the pieces into the gloves so they're on the palm. Great buy!

For a guy who's hands always seem to get cold, this device is great. What's interesting is two days after receiving it the temperature in Montreal dropped to below 10c. I love this purchase.

so hard to control. have to charge both. u give 25% off nd i paif full 2 days ago

This product is one of the best companion on a winter cold day. This keeps my hand warm whenever I need it. The ergonomic design of this products make it easy to put it in your jackets , bags or in your pockets and ready to be use when needed. The temperature has four modes and using one or two modes are good enough to make you comfortable and warm. I also used this product to massage my tired muscle and it given me a relief. Easy to carry and charged.