OCOOPA Hand Warmers Rechargeable 2 Pack, Magnetic Electric Handwarmer, 4 Levels Heat Up to 136℉, USB-C Portable Charger 10000mAh, Raynauds, Golf, Tech Gifts for Men, UT2s(MagTwins)Carbonfree Certified

They work very well and have lots of modes for heat. It is very easy to use and you can take them anywhere you want. i personally use them while I game because my hands get very cold. after rounds I turn them on and they are at the max heat in under 2 minutes. The size is perfect and the colors are great. This is a great product and works wonders on your hands. And, you can use them for more than your hands as well.

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.

I recently purchased these rechargeable hand warmers for my husband, who spends a lot of time outdoors hunting in the cold, and they have been absolutely fantastic.**Ease of Charging**: These hand warmers are incredibly easy to charge. They come with a USB cable and can be quickly powered up using any standard USB port. The charging process is straightforward, and they hold their charge well.**Long-lasting**: One of the standout features is their impressive battery life. A full charge lasts for hours, which is perfect for long hunting trips. My husband doesn't have to worry about them running out of power in the middle of the day.**Effectiveness**: The hand warmers heat up quickly and provide consistent warmth. They are very effective at keeping hands warm, even in extremely cold conditions. My husband has found them invaluable during his hunting excursions.**Popular with Friends**: My husband was so impressed with these hand warmers that he ended up getting extra ones for his friends. They've all been raving about how much easier it is to endure the cold with these handy gadgets.**Overall Experience**: These rechargeable hand warmers have been a great investment. They're easy to charge, last a long time, and are highly effective. They've made cold hunting trips much more bearable for my husband and his friends. I highly recommend them to anyone needing reliable warmth in cold weather.

Surprised by how good these are. They are nice and smooth with a decent size to fit in hand. They get warm enough to actually help keep my hands warm and with pain. I’m actually planning on using them with my massage therapy as the round side actually glides easily on skin and cloth and gets hot enough equal to a hot stone. While the charging takes a while to get a full charge it is well worth it and leaving it in a pocket keeps them warm. I love them and planning to get at least 2 more pairs. One for my girlfriend and another to use to keep in rotation when working on folks. I do recommend a better way to control the heat as once it is turned off the heat is immediately gone and getting it back takes some time so maybe a different material that retains heat but is still safe for skin contact would be best. Overall 4.5 out of 5. Highly recommend if you are just thinking about keeping your hands warm. And a good way to massage trouble spots along the arm, thigh, and back preferred with a small amount of cloth between then two.Update: just bought a new set for massage use only and compared the original one I bought with these new ones as I noticed they changed the material for the shell of the device to a bit more grainier but more heat retaining alloy. The new set is lighter and heats up faster than the original. I’ve also noticed the changing takes longer on the new ones but the time use on them are the same as before might be the ones I bought but still. This gives the device more heat to use all around and quicker at that but the material isn’t as smooth as the old material but the heating aspect is now a lot better. Again these things are perfect for hands and massages. While I’ll miss the weight it used to have(it’s like 5 grams or half an ounce difference in weight) I think these are perfect for winters and just heating use in general. A perfect stocking stuffer or white elephant gift or even just hey here’s a little something to keep those hands warm.

Love these! I bring them to work with me and they have been dropped so many times and still work. They get super hot normally I just have them on step one or two and it is enough! Battery last a long time.