• 【New safety design】：The thermal conductive silicone completely wraps around the double-sided heating aluminum sheet, effectively locking in heat, providing a milder temperature, avoiding the risk of high-temperature burns, Skin-friendly feeling, anti slip and shockproof
• 【Double-side heating】：Double-sided heating aluminum sheet combined with heat-conducting silicone achieves 360 ° heating surface, minimum 104 ℉ - maximum 131 ℉. Warm your entire palm and fingers, 5000mAh X 2 Packs keep you warm for up to 7-20 hours in cold winter
• 【Smart Temperature Sensing】 - Hand Warm features an integrated intelligent AI temperature control chip that provides 3 levels of precise heat release control, feedback and guidance. By constantly analyzing and identifying the temperature between the hand warmer and the hand, ensure that the temperature is always in the temperature gear you set for optimal comfort and safe heating
• 【Ideal Winter Warmth Gift 】：Rechargeable and reusable,In the cold winter, our hand warmers make an ideal gift for Thanksgiving, Christmas, New Year, birthdays, and Valentine's Day, for gifting to family and friends. They keep your hands warm all day long while working in the office, attending classes, camping, hunting, or engaging in any outdoor activities during the cold winter
• 【What do you get】： 5000mAh Hand Warmers X 2 Packs, charging cable X 1Pack ,Lanyard X 2 Packs [1 year after-sales service]