Electric Neck Heating Pad lining is plush material, graphene base. The far-infrared light waves of graphene can promote blood circulation, beauty and skin care, relieve joint pain, etc. Heated Neck Pad’s graphene heating produces a hot compress effect that can relieve joint pain, neck soreness, neck pain, cervical spine pain, etc. Heating Neck Brace uses USB charging, USB charging 5W safe voltage, USB compatible with various USB interfaces, suitable for office, home, car, travel, hotel, etc.