Yamaha YPT- is a touch sensitive instrument that features dynamic authentic Voices with XGlite Voices and Drum Kits the YPT- also has accompaniment Styles and built-in Songs Use the Portable Grand button to instantly call up an authentic stereo grand piano sound An optional USB-MIDI interface allows you to download song data from the Internet and store it to Flash memory on the instrument The Yamaha Education Suite features make learning and practicing music more fun than ever before Dual integrated speakers are powered by an internal amplifier delivering Watts per channel x channels stereo A backlit central multifunction LCD helps you keep everything in control Exclusive Yamaha Education System version features make learning and practicing music easier and more fun than ever before with built-in songs Some might call this an entry-level keyboard but the YPT- is an excellent musical instrument that both aspiring and experienced musicians will appreciate Chord Dictionary – The Chord Dictionary function teaches you how to read and play chords Sound Effect Kit – Play a variety of unique sound effects and DJ sounds directly from the keyboard Intuitive panel control layout and elegant new design Types of Reverb Types Chorus Tempo Range – Transpose – to to Power Supply Adaptor PA- B C or batteries Six AA size LR or equivalent batteries – both not included Port for adding an optional Sustain pedal more info