With mode toggle keys MIDI/Select and Octave 4 editable knob controllers(default):Volume Pan Expression Controller 4 Reverb Providing 6 conventional tap transport functions and editable keypad controller.</br>A MIDI OUT interface send MIDI message to the computer or used as a MIDI controller Providing a sustain interface</br>ATTACHMENT: Description Single, USB cable</br></br>Product Description</br></br>With 88 piano-style sensitive keys Compact design, solid aluminum cabinet USB computer power supply, no external power supply needed Plug and play, requires no driver installation Connected a USB cable to the computer to form your own creation system rapidly New joystick controller controls Pitch and Modulation</br><br/>http://www.amazon.com/gp/product/B00WU6F9IA