... for human immune function, blood circulatory system, respiratory system, digestive system, neuroendocrinology system.2. Laser acupunctureLaser acupuncture, also called ... Wavelength: 980nmWavemodel: semiconductor laserPower: 50mW, 100mWKPT laser pen, focusing laser card, usage instruction manualDirection for use1. ... .Notice:KPT IR laser health-care acupuncture pen emit infrared ray, it is unvisible by ...