Versatile 2-in-1 Design: Upgraded hand warmers feature dual-sided heating and can be used separately or combined for 360° warmth. Hold one in each hand, share with family members, or place them in coat pockets. Enjoy versatile comfort wherever you need it High-Capacity Charging: Equipped with two 2000mAh hand warmers, providing up to 11 hours of heat. The innovative design with a 10000mAh charging case allows you to recharge the warmers up to five times on the go, ensuring consistent warmth Adjustable Heat Levels: Choose from three heat settings, 95-107.5°F, 107.5-118.5°F, and 118.5-131°F. Whether it's a mild chill or severe cold, you can select the perfect temperature to suit your needs, ensuring a warm experience in cold-weather conditions Compact and Lightweight: Each hand warmer measures 3.5 x 1.5 x 0.8 inches and weighs just 3.75 oz, making it easy to hold and effortlessly fit into your gloves or pockets, ideal for outdoor activities in cold weather, hunting, golfing, camping, and skiing Ideal Present for Winter Warmth: Give the present of warmth this Christmas, birthday, or special occasion with our fast-heating hand warmers. Ideal for outdoor activities and winter work, they’re the perfect way to stay cozy throughout the cold winter