real high frequency technology, measured at 13.56 million hz, no spark and no skin injury 980nm laser is the optimum absorption spectrum of porphyrin vascular cells. vascular cells absorb the high-energy laser of 980nm wavelength, solidification occurs, and finally dissipated. the operation is very easy. there is no injury, no bleeding, no scars afterwards. export grade quality, 110v-220v international common voltage, humanized operation interface, simple and the language can be customized not only supply the beauty machines, but also supply the good service we will provide you with a detailed user manual and operation video, ensure you can operate it well..syi