Light Wave: 660nm, 850nm, 660nm+850nm. LED Qty.: 660nm: 48pcs, 850nm: 48pcs, total 96LEDs. SUTABLE FOR ANYONE: Red light is suitable for the back, neck, shoulder, joints knees, elbow, face, etc, therapy red light could penetrate deeper into the tissue, or-gans & jo-ints, enhancing muscle recovery and reducing jo-int pain.
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