Roland BK-9 76-key Professional Arranger Flagship 76-note instrument with top-level sounds, industry-leading auto-accompaniment features, and a lightweight, mobile design Over 1, 700 sounds and 70 drum kits, including 22 SuperNATURAL sounds and 500 all-new tones Legendary Virtual Tone Wheel organs, with dedicated harmonic bars for authentic vintage organ performance 540 rhythms (including 25 new rhythms), remastered for exceptional audio quality; over 1000 Music Assistants onboard Five independent multi-effects engines (MFX), plus dedicated mastering effects All-new user interface with intuitive panel layout, powerful dual LCD system, and Mixer function Professional 16-track sequencer and built-in Rhythm Composer; Chord Loop and Audio Key functions Song playback/recording, unlimited Performance List storage, and more from convenient USB memory XLR mic input with dedicated reverb effect; composite video output for displaying lyrics and photos Compatible with Apple iOS devices via Roland Wireless Connect; supports USB connection to iPad with Apple’s iPad Camera Connection Kit Free iOS apps include BK Partner, Lyrics Viewer, Air Recorder, and more