30,000 Hz of exfoliation power Ideal for professional grade skin cleansing, smoothing, and product application at home. Created by skincare professionals! Features an alloy case, medical grade stainless steel applicator, IP35 water resistance, exceptional weight and balance, in a small and compact unit perfect for home care and traveling Contoured, compact design fits comfortably in the hand Designed in USA by Bio-Therapeutic, an FDA registered medical device manufacturer since 1974. UL listed, and ISO 9001 / ISO 13485 certified