This heating pad for shoulder pain relief has 3 level temperature settings which controlled by on button: low-green, mid-blue, high-red(40-65°C/104-149℉). You can use heated shoulder wrap as an ordinary add pressure shoulder brace, you can also use it as a USB electric shoulder heat wrap or work with an ice pack for cold therapy This arm wrap brace usb electric comes with a USB power cord, you can enjoy the warm in multiple occasions, whether you are walking or driving or working in the office. This heated shoulder wrap made of lightweight, breathable neoprene; the fashion blue color shoulder brace is fully adjustable to fit most people's body size. Fits left and right shoulder for men and women : Our heated shoulder brace has two size can meet most adults needs with the adjustable shoulder strap.The specific size are shown on the picture.