1.[Self-Controlling Temperature ]The rotator cuff-wrapped shoulder strap has a power adjustment function. The user can adjust the temperature of the rotator cuff-wrapped shoulder strap by adjusting the power voltage button. You can adjust the temperature to a temperature that suits you according to your needs. The adjustment is quick and convenient. Practical design. 2.[Shoulder Support Brace ]The heated shoulder bace massager helps you to relax the knee and improve muscle stiffness around the shoulder. And meanwhile, the heating will further warm up your knee to relieve muscle soreness and reduce joint swelling. 3.[Adjustable size] This shoulder massager can be worn by men and women. It can adjust the pressure according to your needs, provide customized comfortable compression, and easily adjust the sling to the length and comfortable position you want. 4.[Note]Do not apply the heated area directly to the skin. You can use a towel, cloth or bed sheet as the interface between the product and the skin. Shoulder support is very suitable for torn rotator cuffs, dislocated AC joints, sprains, paralysis, strains, stiffness, soreness, etc.