Collaboration between Roland and Karimoku Furniture, Japan's largest furniture manufacturer State-of-the-art Piano Reality Modeling sound engine produces the full, rich sound of a grand piano The PHA-50 hybrid keyboard (with High Precision Sensing) provides a grand piano-like feel and fully reflects various playing techniques in the sound. The cabinet design features soft curves, made possible by the traditional "hikimono" technique of carefully turning wood into round shapes. Three-pedal unit for serious performance A piano chair designed for comfort based on ergonomics USB port for connecting to smartphones/tablets, computers, and USB memory Connect to your smartphone or tablet via Bluetooth® , play your favorite songs, and use the Roland Piano App The Roland Piano App lets you control the piano and display sheet music for built-in songs. It also offers a wide range of useful features for lessons. Two types of headphone jacks are provided: a standard stereo type and a stereo mini type.