Product Description: 2 in 1 Mini Hand Warmer & 10000mAh Power Bank - Rechargeable, Brown Double Sided Heating: Enjoy rapid warmth with our rechargeable hand warmer, designed to provide instant double-sided heating within seconds. The intuitive one-button system ensures quick and easy operation, keeping your hands toasty in any cold environment. Comfortable Surface: Crafted with a soft, comfortable surface and a curved shape, this hand warmer fits snugly in your hand, delivering warmth from palm to thumb. Its lightweight and stylish design allows it to easily slip into a pocket or attach to a glove, offering both convenience and portability. 10000 mAh Battery: Featuring a robust 10000 mAh rechargeable battery, this hand warmer offers long-lasting heat for up to 8-12 hours. It also serves as a backup battery for USB devices, enabling fast and efficient charging for your gadgets on the go. Two Heating Settings: Select from two temperature settings, 45℃ and 55℃, to quickly achieve your preferred level of warmth. The LED display provides clear information on the current heat setting and remaining battery power, allowing for easy monitoring and adjustment. 2 in 1 Functionality: This versatile device functions as both a quick hand warmer and a mobile power supply. It's not just a hand warmer but also an emergency backup battery, making it an ideal gift for anyone. Perfect for outdoor sports and activities, indoor office use, commuting, and indoor games, this hand warmer is an essential accessory for staying warm and connected.