Simple operation interface, ultrasonic, +/- ion, pad multi-function.25000 times per second ultrasonic vibration with mild heating, promote blood circulation, accelerate the speed of skin cell metabolism, soften old keratin, restore skin elasticity, and make the skin tighten and smooth.Metal touch sensor strip on both sides, when in use, your hands must hold the touch sensor on both sides, then the ion function can work.Ultrasonic + positive ion: Deep skin cleansing, remove dirt, excessive gre...