SN9 ultrasonic facial cleanser with 3 millions of microwaves gives the greatest facial treatment. The high sonic pulse frequency causes water to mix with dirt, oil, or makeup residues, etc. Strong vaporization with strong vibration then removes the harmful substances gently. ultrasonic pulse massage with led photon therapy improves blood flow, enhance collagen rebirth, and refreshes skin's elasticity.SN9 ultrasonic facial cleanser goes deep into the clogged pores, with creative play, curvy design, unique concave ultrasonic probe vibrates at a high frequency of 3MHz.