The Studiologic SL-990 PRO features an 88-key weighted, velocity-sensitive, hammer-action keyboard with beautiful ivory finished keys and constant strike force action for true piano feel. Performance controls include pitch and mod wheels; 8 zone-specific velocity curve settings; program and bank change; transpose; MIDI channel change; and 100 user memory locations. MIDI output plus sustain pedal input. Power adapter included.88 keys with hammer action Pitch and mod wheels MIDI output Sustain pedal jack Channel, program, and bank select Includes a power adapter