... initial touch,multi-functional keyboard 2.Funciton Assignable Slider, Pedal, Pitch Bend Wheel, Modulation Wheel, Up/Down Buttons, ... plug supporting4.Interface MIDI interface,USB interface, pedal interface(for a switching or continuous pedal controller ) 5.Power 9- ... NO.FUNCTION1MIDI OUT, MIDI output interface.2USB, USB interface. 3PEDAL, Assignable pedal inter face 4DC12V, 12V power input interface. ...