... digestion, and neuroendocrinology system. 2. Descrpition KPT Laser Pen Physiotherapy uses low energy laser beam to stimulate acupuncture points. It is a ... 980nmWave type: semiconductor laserCapacity: 50mW, 100mW 4. Included KPT laser pen, a metal container, focusing card, and user manual. 5. ... the pen.2. Point the laser pen to the focusing card, press the power button, and there will be a green light ...