Kegel Smart takes all the effort out of Kegel exercising by choosing the right routine for you and then guiding you every step of the way. With its touch-sensor technology, Kegel Smart registers your pelvic floor strength then automatically sets the perfect routine for your level. Kegel Smart coaches you through the routine with gentle vibrations. Developed with the support of Intimina's Medical Advisory Board, including gynecologist's and pelvic health specialists, Kegel Smart gives you expert pelvic floor training in less than 5 minutes a day. Exercising with Kegel Smart is super easy, Kegel Smart will automatically move you up the levels as you build strength. Keep track of your progress with a quick-view flashing LED. Uses 1 AAA battery (not included).