Feature: 1. Soreness Relief: Can improve local tissue ischemia, reduce inflammation and swelling, relieve soreness, relieve muscle spasm, and promote collagen production. 2. Multiple Applicable Parts: Red LED therapy device can be used on the back, neck, shoulders, knees, hands and other parts, efficient physical therapy. 3. Multiple Use: Red LED therapy is great for repairing skin, reducing ache, losing weight, etc. Relieve joint stiffness and muscle fatigue, make you feel comfortable. 4. Aluminum Alloy Material: Red LED therapy torch adopts aluminum alloy material, firm and sturdy, anti rust and anti impact, no deformation, stable and durable. 5. Portable Design: Comes with battery charger, easy to charge. Small and lightweight, comes wit a lanyard, easy to carry, suitable for home and travel use. Specification: Item Type: Red LED Therapy Device Material: Aluminum Alloy Battery: 1 x Lithium Ion Battery (Not Included) Battery Model: 18650 Application Description: LED therapy effect, through the method of physics, emits 620nm, 660nm, 850nm LED band, which is in the same band as He Ne LED, penetrates deeply, and uses red LED to penetrate the human body and the optical effect of the red LED band (refer to after red), the effect of LED on mitochondrial catalase activity increases, enhances cell metabolism and protein synthesis, promotes local blood circulation, and controls the increase in infections.. Package List: 1 x Infrared Therapy Torch1 x Lanyard1 x Battery Charger1 x Storage Bag