Relieve knee pain: You can use the Heated Heated Knee Brace in seconds like a regular knee brace to provide ultra-comfortable hot therapy for knee arthritis relief and injury recovery. It can also stimulate blood circulation and improve circulation in the knee - Can also be used on calves, thighs, arms to relieve muscle pain and cramps. 1 control knob and 3 heat settings: Very easy to use, you can control the temperature and heating time entirely by yourself. Power button with LED indicator, USB heated knee support can be used on red/white/blue/lower settings. Briefly press the button to cycle through another heat setting. Available in several occasions: Comes with a USB power cord, you can enjoy warmth and blood circulation in many occasions, whether you are walking or working in the office. Short press the button to change the temperature: red, blue, medium or green - low to relax the shoulder muscles and accelerate healing time all day (Note: use a 5V adapter or mobile power supply, not included) . Knee pad for ice pack: Built-in mesh pocket and you can insert an ice pack or herb bag for therapy. If you have acute sprains and other soft tissue injuries, apply low body temperature cold therapy first, then use hot therapy after 48 hours to promote recovery. Note: ice pack not included. Lightweight and adjustable: Made of lightweight, breathable neoprene, the heated knee pad is fully adjustable to fit most people. The heating pad can provide you with needed heat and relieve pain. Fits left and right knees for men and women. An ideal gift for the elderly.