Korg nanoKEY2 Slim-Line USB Keyboard Bundle with Headphones and Polishing Cloth - White Low-profile, 25-key USB-MIDI keyboard, ideal for use with laptop and netbook computers Advanced-design keybed offers improved accuracy and velocity-sensitive keys Sustain button -- ideal for entering piano parts! Control buttons provide simple yet versatile control Works with the "Korg Kontrol Editor" software -- available free on the Korg website