4 in 1 multifunction photon ultrasonic lonic vibrate beautyappliance personal massageTreatment theory:Â 2). Blue light: reduce inflammation, Eliminate Acne , thebalance of water and oil for oily skin , very suitable oily skin,Acne skin and sensitive skin.2. Ultrasonic Function:3. Ionic Lead out Function:Using super micro-motor vibration, like a beauticians make gentlymassage in your face. Strength the muscle and skin cell movement,change the cell volume, enhance the permeability of the cell,improve metabolism and regenerate ability. Stimulate nervous systemand cell function, make your skin more elasticity and lusterUsage:Two to three time per weekï¼ten to twenty minutes per timeãMatch with Skincare product: Gels, skin essence and other skin careproductsFeatureï¼Ultrasonic, Photon, Ionic lead in, Ionic lead out, PhysicalVibrationWork styleï¼Adapter power supply