Keyboard: Keyboard: 61 keys (standard keys 5 sound group + 1 key) Voices: 128 voices (can be selected via the numeric keypad and Up & Down) Rhythm: 128 kinds of rhythms (can be selected via the number keys and the Up & Down) Demo Songs: 30 Demo Song (Attached DEMO track table) Chords: Single finger chords multi-finger chords synchronized chords 64 polyphonic with two-channel 16-bit DAC output built-in amplifier circuit MIDI output channel design features and equipment MIDI OUT cable is not included Recording function: 336 recording notes (including the NOTE ON and NOTE OFF process) playback Digital Display: Display of hand-rolled piano tones and rhythms of the state Internal speaker: Can external headphones or external amplifier (home theater) Power supply: Power-saving design 4 x AAA batteries (can play about 15 hours) or DC 5V 1000mA power supply Output power: 500mW