Digital piano 1,Franch Dream sound card 2,88-key hammer keyboard 3,OEM acceptability 4,USB,MIDI-in-out ... 1,LCD Functions Display 2,88-key hammer keyboard3,138 tones/12 kind directly4,100 rhythms/12 ... function14,Keyboard split /dual voice15, Switching volume mixer16,State memory17,Touch control/ metronome18, Sustain/Vibrato19,sustain pedal20,Reverberation/Chorus21, USB/MIDI ...