Heated shoulder pads, warm shoulder and shoulder joints, relieve soreness, single shoulder heat, designs fit shoulders, blue S size, perforated breathable, unisex, suitable for left and right shoulders; ice pack net with built-in ice; No battery, can be adjusted heating, divided into three gears Low 40-60C Mid-range 55-65 C The highest temperature 65-75 C Charger output voltage: 5V output current: 2A; Four-point compression pad for more effective support and pain relief on the shoulder. Easy to operate, simple and comfortable to wear. High quality diving material, heating gasket, with USB for Android port charging cable Note The use of power supply problems, resulting in the use of no heating, product heating does not work, need to use 5v2a power supply. Please measure the user's arm circumference and bust circumference before buying to prevent buying the wrong size. Package List 1There are fourpoint compression pad for more effective support 2No battery, Heated shoulder wrap brace can be adjusted heating 3Made of high quality diving material, heating gasket 4Easy to operate, simple and comfortable to wear. 5If you are not satisfied with our product you received, you can send emails to us at any time.