🔥 Stay warm, stay connected — the power of warmth in your hands!
The coldSky OT-107 rechargeable hand warmers feature a dual magnetic design allowing use as a single or combined double-sided heater. Crafted with durable aluminum, they heat up in 2 seconds and offer up to 12 hours of continuous warmth powered by a 4000mAh lithium-polymer battery. Compact and lightweight, these hand warmers include 3 adjustable heat levels, LED battery and temperature indicators, and built-in safety protections, making them the perfect stylish companion for winter outdoor activities or daily use.
| Size | Normal |
| Brand | coldSky |
| Color | Black |
| Material | Aluminum, Acrylonitrile Butadiene Styrene |
| Recommended Uses For Product | Outdoor activities, Winter travel, Everyday use |
| Battery Description | Lithium-Polymer |
| Battery Capacity | 4000 Milliamp Hours |
| Charging Time | 2.5 Hours |
| Included Components | Hand warmer, USB-C charging cable, Lanyard |
| Reusability | Rechargeable |
| Use for | Hand |
| Power Source | Battery Powered |
| Manufacturer | DONGGUAN HONGYUTAI ELECTRONIC CO., LTD |
| Item Package Dimensions L x W x H | 6.26 x 4.17 x 0.87 inches |
| Package Weight | 0.2 Kilograms |
| Item Dimensions LxWxH | 3.2 x 1.8 x 0.6 inches |
| Brand Name | coldSky |
| Warranty Description | 1 Year |
| Model Name | OT-107 |
| Suggested Users | unisex-adult |
| Part Number | OT-107 |
C**M
Long lasting charge and compact
I bought these for my brother and he immediately called me after he first used them to tell me how much he loved them. The charge lasts a long time and they are so compact. I may get a pair for myself!
D**S
Lo que necesitaba
Me gustaron mucho, muy prácticos, justo lo que estaba buscando, gracias 🙂
K**N
Great item, works well, perfect for outside winter days
Great item that holds a long charge and is sooooooo warm when working on cold days. Price, quality and functions are as expected or exceeded.
T**Y
Awesome hand warmers
These get really hot very quick. I haven’t hard to use them past the first setting. Perfect size to hold and they come with little wristlets. I like that to turn them off you have to hold the button for about 5secs, this avoids them turning on accidentally.
A**R
Keep hands warm
Work as expected. The highest setting gets very hot, so we keep them at the mid-range.
L**.
This heater gets hot, maybe too hot for some.
I placed these in my jean pockets for a walk with my dog on cold evening. These were set at lowest heat level and after a few minutes I had to rotate them in my pockets for the non heat side. Later, I rotated back to heat side and were ok. Probably just needed some more time to get use to heat. Took them skiing as well. I placed them in inside jacket pockets for two and half hour session and no problems maintaining heat for that time. Probably the highest level would be appropriate for really cold days, but did not try it at that level.
L**E
Great service
Great service, seems to work good.
M**Y
Amazing for Someone Who is Always Cold
I have the hardest time keeping my hands warm, it’s even worse during cold weather. I have debated getting something like these for years and am glad I grabbed these. The charge will last 4-6 hours depending on what level you use.In January and February it is often around 28-40° when I leave for work in the morning. I slip one onto each wrist and dont even need to bother with gloves since I’m not outdoors long. When I only use them in the morning I can go a few days between charges.Bonus! These are the perfect size for targeted heat therapy in a pinch. I have used them to soothe menstrual cramps. I did purchase the ones with the fuzzy cover, those are a bit of a pain to use. They look cute, but they mute the heat and get dirty very easily.Edit/update: nearly 6 months of daily use, and one of them no longer charges.
Trustpilot
1 month ago
2 months ago
