Neck Heat Pad is plush material, graphene base. The far-infrared light waves of graphene can promote blood circulation, beauty and skin care, relieve joint pain, etc. Neck Heating Wrap’s graphene heating produces a hot compress effect that can relieve joint pain, neck soreness, neck pain, cervical pain, etc. The Neck Warmer is safer to charge with a safe voltage of 5W. Neck heating pad comes with a medicine bag, which can be used to store medicine bags such as mugwort herbal medicine bag, ginger medicine bag, saffron medicine bag, etc.