This is the Linka Hikari Biyo-ki Snow Flash facial device. Used a few times. Operation has been confirmed. All accessories are included: instruction manual, goggles. No gel is needed as it is used on dry skin. Brightening care and firmness/elasticity care with two types of light: "DPL" x "NIR". - "Dual Filter" that simultaneously irradiates DPL and near-infrared light - 3-stage mode switching with different irradiation speeds and intensities - Touch sensor (light leakage prevention function) - NTC temperature control (safety device to prevent temperature rise above 43°C) This is a light beauty device that simultaneously irradiates "DPL" (500~650nm), a wavelength band effective for skin noise among IPL lights, and "NIR (near-infrared)" (900~1800nm), which maintains skin firmness.