Standard keyboard: 61 Piano-style keys, AiX Tone Generator, Touch Response, 48 Note Polyphony, 600 Tones, 195 Rhythms, Digital Effects (Reverb, Chorus, Delay, DSP, Virtual Hall, Master EQ), Metronome, Arpeggiator, 310 Music Presets, 160 Built In Songs, Lesson System, 4 Set x 8 Bank Registration, Transpose, Octave Shift, 17 preset Scale Settings, 6 Track MIDI Recorder, Headphone, Audio In & Sutain Pedal Jacks, USB to Host, Two Speakers, 5W Amplifier, Operates on 6 AA Batteries or Included AD-E95100 Adapter.