About this item

• 【4 Packs Hand Warmers】Synthesized into one or use separately, switch freely with the scene. Combined, you can enjoy all-round warmth from palm to fingertips. Use separately, you can warm both hands at the same time. 4-pack hand warmers, giving you double the warmth. (Patented product, Pat. US11916334) | 【20 Hrs*4 of Continuous Warmth】3 heating levels can be selected with a simple button. Heats up to 130°F in just 2 seconds. The 3000mAh*4 capacity battery can last up to 20 Hours *4 of warmth | 【Safety Certified】 Equipped with 6 Safety Protection Technologies, it has passed nearly 100 safety tests. Precise Temperature Control System and more advanced safety features to give you peace of mind when using it. Products are certified by UL, CE, MSDS, FCC, etc | 【The Perfect Gift for Friends and Family】AaoLin's rechargeable hand warmers keep your hands warm while working in the office, attending classes, camping, hunting, or doing any outdoor activity on a cold winter day. Perfect for Thanksgiving, Christmas, Birthday, and Valentine's Day gifts for your family and friends. It is the most cozy gift for men, women, seniors, and children | 【More Practical Design】 Double the heating area, especially suitable for the hyperthermia needs of patients with Raynaud's arthritis. The ergonomic design can be held perfectly in your hand and easy to carry to anywhere. Perfect for outdoor sports, camping, hunting, hiking, golf | 【Comfortable and Compact Design】 AaoLin hand warmers feature a compact design that is only 0.7 inches thick and less than half the length and weight of a cell phone. Fitting easily into gloves, pockets, or purses, It is the perfect companion when fighting the cold.