Description HOT THERAPY FOR PAIN RELIEF: Built-in heated pad to keep provides ultra comfy hot therapy for knee arthritis pain relief and injury recovery， keeps knee warm， can also be used on calves， thighs， arms to relieve muscle soreness and cramps， make your knee more comfortable. COMFORTABLE AND SAFETY MATERIAL: The heated knee brace is made from carbon fiber and neoprene， which is safe and soft than other heating material. Great for use when youre watching TV or reading a book on the sofa at home， working in front of the computer， or even during your travel. POWER ONE BUTTON CONTROL: Long press the button for 3 seconds to turn it ON/OFF， short press the button to switch mode. Red-highest temp (50/122 to 60/140); White-medium temp (45/113 to 55/131); Blue-lowest temp (40/104 to 50/122) ADJUSTABLE AND STAY IN PLACE: Three bifurcate straps design， hook and loop closure， the heating pad can wrap around and be locked at any leg or arm positions where you need heat compress， you neednt hold it by hand anymore. Great for men women office workers， sedentary people and others who are easy to suffer muscle soreness and cramps. CUSTOMER SERVICE: Put your worries aside We value the customers product experience very much. If you have any questions， please contact us and we will solve it for you. Go ahead， you deserve the quality of this knee heating wrap.