Note: power bank is not includedUSB charging precautions: 5V non-inductive voltage (with a portable power adapter for better heat dissipation), no electromagnetic radiation, energy saving and environmental protection, connect the portable power adapter and hold the switch for 3 seconds to charge and warm.9 Heating Zones - Heated Vest Designed for Cold WintersSoft inner: thickened inner, breathable and warm, comfortable and delicate, good color, soft and smooth to the touch, warm and comfortable to wear.Carbon fiber heating wire: Non-ordinary metal wire has many excellent properties such as high strength, high modulus, high temperature resistance, wear resistance, corrosion resistance, creep resistance, electrical and thermal conductivity, etc.Applicable Occasions: Ideal for daily commuting, motorcycle riding, hiking, camping, fishing and other outdoor activities, as well as autumn and winter business activities. It is an ideal gift for family, friends and employeesAnti-fouling fabric: Integrated with black technology, it effectively prevents oil stains, resists corrosion and blocks outdoor rain and snow. The surface layer of nanomolecules is rainstorm-level waterproof, and the middle layer is a microporous membrane for circulation ventilation.