5results BK-5 Backing Keyboard Portable, arranger keyboard with high-quality sounds/styles and built-in sound system. View Product BK-3 Backing Keyboard Portable, self-contained backing keyboard with built-in sound system, high-quality sounds, rhythms, and Music Assistants. View Product BK-5 OR Backing Keyboard Backing Keyboard for Oriental Music View Product BK-9 Backing Keyboard Flagship 76-note backing keyboard with over 1,700 top-level sounds, industry-leading auto-accompaniment features, and a lightweight, mobile design. View Product E-A7 Expandable Arranger The E-A7 is a versatile arranger keyboard for musicians needing professional sounds and authentic backing styles from all over the world. View Product