Hand Warmers 2 Pack, Rechargeable Hand Warmer, 2 in 1 Reusable Electric Handwarm
It features a substantial 4000mAh 2 lithium battery with a USB-C port. 2 seconds fast heating, 3 levels of temperatures 100-104°F/109-113°F/118-122°F at your choice, to achieve stable, adjustable, precise and comfortable heating effect.