Hand Warmer, Rechargeable Hand Warmer 4500mAh, Reusable USB Hand Warmer Hot Hands, Portable Pocket Warmers for Women, Men Winter Gifts & Therapy, Black

We've been using these during winter months for several years now. They heat up fast and the battery lasts a long time. I'll be giving some as stocking stuffers this year.

These get used every morning on a 2 mile hike during the winter. They do require charging daily if they’re used on the highest setting but they last the entire hike which is usually about 45 minutes. They work well in pockets as well as when carried in hand. Get 2 so you have one for each hand. They’ve been used in temps as low as 11 degrees F. Very happy with these.

Great product, I just wish the battery lasted a bit longer. Other than this it's a great little hand warmer.

I purchased this last year and purchased additional this year because they are easier to hold than the typical handwarmers that are rectangular. This has also been helpful for my 90 yr old mother to hold for her cold hands in order to get better PulseOx readings. She can wrap her fingers easily around it. They may not fit in a pants pocket easily but are fine in a coat pocket and much easier to hold.

I gave one as a gift and it works amazingly well. The recipient loves it! But I just opened the box for the second one for myself and it does not work at all. We tried everything we could think of and zip. So it is a good product, if you get one that works.