This massage heating wrap pad provide therapeutic heating and massage to neck, shoulder and upper back for maximum relief, soothing away neck, shoulder and upper back tension and stiffness, with unique design to fix neck and shoulder perfectly, slight weight energy stone in the edge of this product for secure fit. Heating system is carbon fiber which emit FIR. It with 3 temperature setting, 7 level massage control. Heating and massage can work separately or together. We can use massage only in hot summer and use heating and massage in cold winter. After one long day hard work, we feel so tire, then just wrap this warmer massage, lay on sofa, start dry sauna for deeply relax for neck, shoulder and some part of body.