Infrared & Red Light Therapy for Joint Pain Relief Device Led 880nm Wearable Knee Elbow Pads Home Use Wrap. Extra-Large Wrap- 176 powerful LED lights, wider area for better and whole cover therapy on knee, elbow, thigh, calf and ankle. Invisible infrared lights (880 nm wavelength) penetrates to deeply in 30-40 mm, making it beneficial for bones, joints and deep muscle problems. Soft & Comfortable Use - Thick but lightweight microplush fibers offer maximum comfort for daily use. Adjustable velcro straps help the light system fit around the target area hands-freely and focus on therapy in office or at home.Safe & Natural Solution - This light therapy device shows no negative side effect on people. It helps speed up joint recovery and alleviates pain, great for sport injuries, sprains, thigh and calf stiffness, sore ankle, muscle pain and tissue repair. Designed for pain relief, and muscle relaxation, work with auto shut-off for 20 minutes, a time controller is also ready for customizing use. This device can be used multiple times per day, and it is safe for all skin types. Doctor-Recommended & used by Health Professionals. This LED therapy utilizes the state of the art technology used on Pro Athletes by today's leading Doctors, Physical Therapists and Trainers. Its been tested in the real life by several athletes and the aged. Now you can successfully apply to ease painful joints and muscles at home for a fraction of the cost.