Specification Power: DC 5V Speakers:Built-in high quality speaker system Battery: 4 AAA dry batteries(enables 10-12 hours playing), not included Piano Tones: 10 options Demo Songs: 8 options Features 37-Note Keyboard Allows Children to Practice Piano Anytime, Anywhere with Easy Color-Coded Notes, Built-In Speaker & Adjustable Tones Soft, Flexible Keyboard Rolls Up in Seconds for Discreet Storage & Travel Convenience Nonslip Bottom Prevents Movement on the Floor as Boys & Girls Practice, Great for School, Music Class, Play Date or Vacation More Than a Toy, replicates the Sound & Feel of a ‘True’ Piano, Teaching Kids How to Read, Play & Practice Music as Young as Preschool Choose from [10] Unique Instrument Sounds & [8] Demo-Songs with Play-Along Function Includes High Quality Built-In Speaker & Ports for External Mic/Speaker, Volume Wheel & ‘Record’ Option to Play Back Notes Device Runs on [4] AAA Batteries So Kids Can Tickle the Ivories Everywhere They Go! Includes DC 5V USB Power Cable for Unlimited Play & Mesh Carrying Case | Perfect Gift for Music-Loving Toddler, Kindergartener, Etc. Package Includes: 37 keys roll up piano Mesh Carrying Bag USB power cable Instruction Manual