Principle - It penetrates into healthy tissue and reaches pain-free areas. Abnormal cells can absorb excess energy and heat, accelerating metabolic breakdown. At the same time, it activates inert cells and supports the body's self-healing. Effect - Active terahertz light waves with high permeability penetrate 20–30 cm into the body, quickly unblocks meridians and lymph nodes, improves microcirculation, and disperses cold and moisture. Three-level temperature control - Simple and elegant rotary switch design with three temperature levels and an intelligent shut-off function for enhanced safety. Functions - The device directs light directly into the body, stimulating absorptive capacity and relaxing the muscles. It promotes internal circulation and helps filter residues. Use scenarios - Post-exercise recovery: Apply to sore or overworked areas to relax muscles, improve circulation, and support recovery. - Cold or damp environments: Use to relieve stiffness and support microcirculation, helping to dispel cold and moisture. - Wellness maintenance: Regular use to promote meridian and lymphatic flow, support overall circulation and tissue vitality. Notes - Maintains the original focus on function, performance, and safety without introducing additional features beyond the described specifications.