54-key Standard Keyboard 100 Timbres/100 Pop Rhythms 6 Percussion/Keyboard Percussion 5 Stereo Demo Songs /Demo One/Demo All Master Volume Control 8-Level Accompaniment Volume 32-Grade Rhythm / Transpose Record/Play/Program Sustain/Vibrato/ Echo Metronome Sync/Start/Stop/ Fill-in S.Finger/Fingered/Normal 2 Teaching Mode/LED Digital Display Three-minute Auto-power-off Microphone/External Power /Speaker