Hand Warmers Rechargeable 2 Pack, Warmco 10000mAh Magnetic Electric Handwarmers Portable Power Bank, 9Hrs Warmth 3 Levels Heat Up to 136°F Reusable Battery Operated Heater Keep You Warm in Winter

The market is flooded with this concept of "big battery hand warmer", but these are the best for three reasons:1. The shape is fantastic for warming your entire hand, and is very child-friendly. Little hands work great on these, whereas the soap bar style that's more common can be a bit big, or fit in fewer small pockets.2. The secondary functions: Being able to charge a phone in a pinch is a lovely touch, and the magnetic attachment means you can turn them into a single, larger warmer is great as well.3. The price is extremely reasonable. It's rare to find the best implementations amongst the least expensive options, but that's what we have here.Recommended.

I love these hand warmers! They heat up fast and get nice and hot. They hold their charge for a long time. They’re the perfect size to hold while hands are in your pockets. Definitely recommend.

These get quite warm on the lowest setting and stay warm for a long time. I wondered if I would like the tube shape since most others are flat. It maybe isn't perfect for some things, but I really like it for holding on to to warm my hands. You don't have to keep flipping it over like I usually do with the regular kind. Mine came without a charge at all which isn't a problem...just worth noting. I don't know this for a fact, as there is no way to take it apart without breaking it, but I expect each one contains a 5000 mAh 21700 battery.

I really like these hand warmers, and they really help to combat my Raynaud’s Syndrome. My wife got me these and they’re great for these winter months. The low setting gives plenty of heat output for bare hands, although every once in a while it seems to fluctuate its output. I love that they are magnetized, so it really helps to keep them together to carry around when not in use, so it really makes them really portable.Pros: Give great heat; 3 heat levels; dual charging cable; battery life is decent, especially when using low level; magnetized, helpful to keep together when not in useCons: Take a while to charge, especially upon initial charge after opening; at times they fluctuate heat output

Hockey mom... Absolutely approved, they are amazing in cold rinks! Almost too hot to hold on the lowest setting. They fit nicely in your hand, and hold a decent charge. I often end up sharing the second one with a nearby mom or my daughter.

Works great, very warm

These warmers feel great in your hand. They get warm all over, unlike others i have tried. Not too heavy. Good price. Great for hunting. I use one at a time to make them last all day.

Have been looking for an alternative to the crack and shake hand warmers. And this device fits well in my hands and my jacket pockets. The button to function then on works good and they have a solid feel.