Feature: 1. Release More Nutrients: Red light can penetrate the skin surface and be absorbed by mitochondria in cells, increasing the activity of mitochondria and releasing more nutrients such as ATP, peroxidase, and protein. 2. Promote Cell Tissue Repair: Red light therapy for body can increase cell metabolism and promote the repair of cell tissue. Being small and light, it can be conveniently packed away and carried around. 3. Pain Relief: This therapy device releases infrared rays that can penetrate deep into tissues and bones, create a thermal effect, increase blood circulation, relieve pain and relax muscles. 4. Efficacious Treatment: The red light therapy pain device is with a 30 diopter optical glass lens, which can increase the irradiance by 120mW/cm at a distance of 1in, improving efficacy and shortening time. 5. Applicable Body Parts: This red light therapy can be used to apply to a wide range of body parts, such as on the back, neck, shoulders, knees, hands and more to relieve joint pain, muscle fatigue and soreness. Specification: Item Type: Red Light Therapy Device Material: ABS Built in Battery: Li-ion Battery 2000mAh (included) Note: 850NM is not visible light to the eyes Application Description: 1-1: Phototherapy Effect: Through the method of physics, it emits light bands of 630nm, 660nm and 850nm (the same band as He-Ne, deep penetration, and red light penetrates the human body and The optical effect of the red light band (referring to the red color) increases the effect of light on the activity of mitochondrial catalase, enhances cell metabolism and protein synthesis, promotes local blood circulation, and increases infection control. . Package List: 1 x Red Light Therapy Device1 x Support Frame1 x Lanyard1 x Head Support Frame1 x USB Cable