Effective Re-lief for Shoulder Pa-in: This wearable infrared light therap wrap features 488pcs of 660nm LED red lights and 244pcs of 850nm LED near infrared lights. Red Light Therap for body: The 660nm red lights penetrate deep into the skin to boost circulation and en-courage cellular re-pair while the 850nm infrared light penetrates bones joints and muscles for pa-in re-lief.Red Light Therap Wrap: The adjustable wrap with an ergonomic design fits most individuals enabling full coverage of the shoulder and shoulder blade for pa-in re-lief and muscle relaxation.Dual Light Therap Modes: Steady lighting therap mode and pulse therap mode. The steady mode enhances cir-culation for muscle relaxation while the pulse mode delivers 10 flickers per second (10HZ) to stimulate cell re-pair and deeply penetrate joints and muscles for effective shoulder blade pa-in reduction.Advanced Shoulder Light Therap Device: Our red light therap shoulder device boasts the latest SMD Technology providing one square light with three light sources (2*660nm Red light & 1*850nm infrared light).