Compared to hand cleaning, the electrical face brush can achieve up to four times more thorough cleaning. Because it is thorough and gentle, your skin will be noticeably softer and have a radiant appearance. Four times more thorough than hand cleaning, with a two-level rotation * You can use water-resistant (IPX7) items in the bath and shower. two speed configurations lighted on/off switch to turn on the display An indicator of almost empty batteries A useful hanger ring for storing includes a soft brush attachment * Powered by batteries Research study (study no. 14.0217-23), Institut proDERM Schenefeld/Hamburg, 20 women