Hello Kitty Rock N' Roll Foldable Pink Piano 37-Key Rollable Rubber Keyboard Power OFF/ON/LOW/HI Switch , Auto Power Off to Save Battery Life Tempo UP/DOWN function, Includes DEMO SONGS for your child to play along with! With 8 Rhythm Selectors, 8 Instrument Selectors leave your child to lead the band! 3 AA Batteries required (NOT INCLUDED)