6X Deeper Pain Relief Effect: This upgraded neck and shoulder heating pad is 6 times more effective than an ordinary heating pad. It uses a graphene lining and a double-layer carbon fiber heating wire. Graphene has good thermal conductivity, and the carbon fiber double-layer heating wire can release human-like infrared rays. The two are superimposed to achieve an effect of more than 6 times, and the heat energy penetrates the subcutaneous tissue to reach every deep muscle. Long-term use can relieve chronic pain caused by long-term head-down work, etc. It is a thoughtful gift for your husband 30s Fast Heating: The neck heating pad incorporates fast heating technology. The high power can achieve rapid heating. It only takes 30S, a wearing time to make you feel the heat, without preheating and long waiting. Compared with other shoulder heating pads on the market, our maximum temperature reaches 159℉. It not only heats up quickly but also has high heat, allowing you to open a new realm of efficient physical therapy! It is also a warm gift for friends Larger and more fitting size: designed according to the structure of the human body, it fits the neck and shoulder curves, making it more comfortable to wear. 24*20 large size, 2 inches more than other products, adjustable strap design, suitable for different body shapes, no matter fat or thin. And the neck extension design allows your neck to enjoy the beauty of heat therapy. The light weight of 1.2lb is comfortable even for elderly parents, and can be given as a gift to mother