Features11 SECOND FAST WARM HANDS: Using innovative graphene PI film heating technology, the rechargeable hand warmer can feel the warmth in just 1 second, quickly dispel the cold, and enjoy the immediate comfortable experience without waiting 2CONSTANT TEMPERATURE PROTECTING: Integrated with advanced graphene temperature limiting technology, the electric hand warmer scientifically manages the heating process, ensures the temperature is stable within the comfortable range, avoids overheating, and gives the skin the gentler care 3ERGONOMIC DESIGN: Cute rechargeable hand warmer ergonomic shape is specially designed for hand holding, ly fit the curve of the hand, even if the long time holding also feel comfortable, reduce hand fatigue 4SAFE TEMPERATURE CONTROL: Integrated intelligent chip automatic inspection and accurate control temperature, with multiple security protecting mechanisms, in case of abnormal response in the process of use to ensure safety 5SKIN FEEL, CUTE PET APPEARANCE: Reusable pocket hot hands heater reusable pocket hot hands heater use skin friendly materials to feel delicate, combined with the cute cartoon pet design, both a hand warmer and a personalized accessory to add warmth and fun to winterSpecificationItem Type: Rechargeable Hand WarmerMaterial: ABS, PC, metalBattery Type: Li ionbattery 4000mAhCharging Method: Type C interfacePackage List1 x Hand Warmer1 x Charging Cable1 x User Manual