Hand Warmers Rechargeable 2 Pack,AI 6000mAh Rechargeable Hand Warmer,20Hrs Long Heating Electric Hand Warmer,Portable Pocket Heater,Gifts for Christmas,Golf,Camping,Hunting

These hand warmers are great! You can set the temperature for low, medium and high. I use the low setting. I use them when I walk my dog on cold days (early morning and evenings). The walk is 1.25 hrs. I charge the hand warmers at the end of the week. This was a great purchase for me.

Purchased these hand warmers for a March trip to Alaska. They worked great and kept my hands warm all day long while we were dog mushing and glacier hiking. Great value for the money.

bad instructions but once figured out work quite well

With the full charge, these hand warmers lasted 6-8 hours on level 1 out in the -4 weather of Fairbanks, Alaska this February. We tested them on level 2 and 3, and can't imagine how or when level 3 would be needed or even tolerable, so there's more than enough heat provided on level 1 or 2 tops.We really enjoyed the ease of using them. TIP is to make sure you keep the box so the "on button" doesn't get accidentally pressed in your pocket of backpack before you are ready to use them.

Heats up quickly and is very hot. Even low setting is pretty warm.

I would say that these hand warmers are one of my best purchases in regards to my comfort. I work outside in the elements and am exposed to cold weather for hours at a time. There warmers have 3 settings. The lowest one works very well if you are sensitive on too much heat or have neurological issues where you do not want to risk overheating your hands. The last setting is HOT! It felt like I dipped my hands in the devil's piss. It worked fantastic it the cold weather we've had in the past month. The battery life is very good so far and they charge rather quickly. The clip onto each other for easy storage.

I purchased this two-pack of rechargeable electronic hand warmers hoping that they might solve a problem that was about to take away my love of the outdoors during the cold winter months. Specifically, my love for winter hunting season. Being afflicted with Raynauds Syndrome, It had become impossible for me to be outdoors in cold weather. I had tried chemical and disposable hand warmers but these did not provide enough warmth for long enough period of time to allow for an enjoyable day during temperatures below 50° f. I saw these advertised and decided to give them a try, as a last resort.I'm quite happy to report that these are exactly what I needed and they have literally allowed me to continue to enjoy my love of winter outdoor activities.These have three different levels of heat settings, and can each easily provide a full days use on a single charge. A couple hours to recharge at the end of a long day, and they're ready to go again. Even on the medium setting, I'm sure that these portable hand warmers will be more than sufficient in allowing me to enjoy the upcoming winter weather.This product is an ideal gift for any and all of your family and friends!

The product description says “2 seconds fast heating with 3 heating settings for your choice: low temperature 35-42°C (95-107°F), medium temperature 42-48°C (107-118°F), high temperature 48-55°C (118-131°F) to achieve stable, adjustable, precise and comfortable heating effect.”I ran an experiment where I put one on low and another on high, then measured the temperature of each. The description says “stable, adjustable, precise”. They actually have on/off controls with the off and on points being at about the high and low values for each setting. So on high (3 dots) the heating turns off at ~130 deg F and turns back on at ~118 degrees F. On low (1 dot) it turns off at ~107 deg F and turns back on at about 95 deg F.I’d prefer a "stable" and "precise" temperature within each range of settings (as stated in the product description), but at least it does provide warmth.