The YDP-184 is the most advanced Arius digital piano ever made. The re-designed interface lets you browse the 24 instrument Voices with ease with a shortcut to the world-class CFX concert grand piano. New to the Arius line series, you'll experience the sound of the stereophonic optimizer which creates a realistic sense of spaciousness when listening via headphones. You can enjoy the realism of Virtual Resonance Modeling (VRM), and high-quality digital effects through the on-board stereo speaker system.Play along with built-in rhythm patterns and record your performances using the built-in MIDI recorder. And with over a century of acoustic piano manufacturing heritage, it only makes sense that the best digital pianos come from Yamaha.