Portable USB Electric Heating Insoles Foot Warmer Washable Heated Winter Warm Shoe-pad Cuttable Thermal Insole (Color : A, Size : One Size) (A One Size) (A One Size)

The graphene far-infrared heating module uses imported polymer superconducting nano carbon black, graphene, curing agent, additives and other through special process, and the volume resistance can be adjusted between 10Ω·cm and 10^4Ω·cm. Flexible and Waterproof: Uniform and stable resistance value, smooth and flat surface, good flexibility, softness and flexibility, excellent wear resistance and waterproof performance. Stable Heating Performance: The total conversion rate of effective electrothermal energy is above 98%, with superconductivity of special graphene material, the heating performance is stable. Uniform Heating: Graphene quickly transfers the heat to stable and uneven part after the heating film generates heat, ensuring uniform heating performance. Good for Health: The graphene heating element can generate far-infrared radiation with wavelength of 8μm-15μm, promote blood circulation, stimulate cell vitality, regulate endocrine balance, improve immunity and relieve fatigue.