The Yamaha DGX-660 digital piano offers Yamaha piano touch and tone, plus a variety of features that help make playing music fun. Its Pure CF Sound Engine reproduces the tone of a Yamaha concert grand piano, while the weighted action is graded to feel like an acoustic piano. Sing along using the DGX-660's built-in microphone jack with vocal effects. Piano Room lets you choose from a variety of piano and acoustic settings (like grand piano lid position) for a custom piano experience. The DGX-660 also features a 6-track song recorder and USB audio recording & playback. Optional wireless adapters from Yamaha stream audio and MIDI to and from your iOS device with compatible music apps.