Yamaha PSR-SX920 portable arranger keyboardIntroducing the Yamaha PSR SX920 workstation keyboard The PSR SX series brings enhanced sound, expressive dynamics and emotional depth to your performances through cutting edge features such as Crossfade Portamento and the integration of Super Articulation technologies. Increased Style Insertion DSP power and new Style Dynamics Control give you the tools to shape every note with precision, putting you in control of the energy and feel of your music.