-- Far infrared heating knee pads use far-infrared (FIR) therapy to stimulate joint cartilage regeneration. Far infrared therapy utilizes infrared radiation to penetrate deep into tissues, promoting the production of growth factors and molecules involved in tissue repair, supporting the activity of chondrocytes and other cells responsible for cartilage maintenance. This innovative protector helps with cartilage regeneration, reduces pain and stiffness, and improves joint function. -- FAST HEATING ELECTRIC KNEE PAD: Heats in seconds, provides ultra comfy hot for knee pain relief and injury recovery, keeps knee warm, can also be used on calves, thighs, arms to relieve muscle soreness and . Supper comfortable for use -- KNEE WRAP FOR ICE PACK: The knee wrap is added with a mesh bag for cold . If you suffering from acute sprain and other soft tissue injury should apply cold first to lower body temperature, reduce the metabolic rate to achieve anti-inflammatory and analgesic palsy, then use hot after 48 hours. NoteIce pack not included in the package -- ONE BUTTON CONTROL AND THREE HEAT-SETTINGS: Very easy to operate, you can control the heating temp and time totally by yourself. The power button with LED indicator, it can be operated to red-highest, white medium, blue-lowest temp setting. Short press the button for once can change to another heat setting -- ADJUSTABLE AND STAY IN PLACE: Two 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 needn't hold it by hand anymore. Perfect gifts for mom, dad, men or women - MULTIPLE OCCASIONS AVAILABLE HEAT KNEE BRACE: Come with a usb power cord, it can be plugged in any power supplies with USB port, such as power bank, PC, laptop, desktop computer and car charger, you can enjoy the knee warm and in multiple occasions, whether you are walking, driving or working in the office