This is the flexible wrap with 60 deep-penetrating LEDs that provide infrared therapy for relieving knee, shoulder, ankle, or elbow pain. Using technology developed by NASA to heal astronauts’ injuries, the integrated medical-grade LEDs help stimulate blood circulation, reduce inflammation, loosen muscles, and temporarily relieve joint pain. A study at the Children’s Hospital of Wisconsin in Milwaukee showed that LED infrared therapy reduced painful inflammation by up to 37%. Unlike wands that must be held for extended periods, this hands-free pain reliever treats the entire elbow or knee and adjusts to fit most sizes using hook-and-loop fasteners. With 20-minute auto shut-off. Charges via included USB adapter.