This Extra Long Wireless Red Light Therapy Wrap combines light wavelengths of both red light (660nm) and infrared light (850nm) for targeted cellular-healing, and potential pain and inflammation reduction. This versatile, wireless, extra long, and flexy therapy wrap contains 450 hard working Led light chips to provide convenient, comfy light therapy for a larger and longer surface area.Use this wrap all over the place - feet, ankles, knees, hips, low back, neck, shoulder, elbow, wrist, and hands, get creative.