Our Laser Needle is a portable phototherapy device for therapeutic use which provide a gentle, natural and side-effect free solution for all kinds of pain caused by rheumatism and rheumatoid diseases. Therapeutic Principle Laser Needle is a phototherapy laser that functions as the Chinese traditional fire needle acupuncture. Laser Phototherapy exerts photobiochemical effects on cells and tissues and promotes cellular regeneration processes to adjust immunity, eliminate inflammation, improve microcirculation and relieve pain without medication. Features 1. Portable design & Easy operation 2. Significant efficiency & No side-effect 3. Safe lock & Adjustable laser intensity Clinical Application Laser phototherapy that utilizes infrared wavelengths has been found to be effective in the following indications: 1. Painful chronic and acute joint and cartilage conditions (I. E. Rheumatoid arthritis, osteoarthritis, psoriatic arthritis, tendon injuries, ligament injuries, knee pain, tendosynovitis etc. ) 2. Chronic pain (I. E. Post herpetic neuralgia, neck pain, migraine, headache, back pain, trigeminal neuralgia, brachial neuralgia, carpal tunnel syndrome, frozen shoulder, plantar fascitis, metatarsal pain, etc. ) Specification Operation Wavelength: 810nm The infrared laser type: GaAlAs Momentary Output Power: 2W (spot emission) Momentary Pulse timing(s): 0.1~0.9 (spot emission) Display Model: LCD Power Supply(Batteries): 3A*4 Contraindications Laser Needle should NOT be used by the following individuals: Pregnant women, Cancer sufferers. People with fitted cardiac pacemaker.