Roland's BK-3 is a very easy-to-use arranger/recorder keyboard that sets a new standard for entry-level arrangers. Loaded with a big selection of sounds, Musical Assistants, and rhythms from around the world, this compact, 61-key arranger's velocity-sensitive keys give you a dynamic and expressive playing experience, while onboard effects make the 800-plus sounds even richer. The BK-3's onboard stereo speakers give you a self-contained performance machine, and you can even record your performance straight from the BK-3 via USBass If you're in the market for a do-it-all arranger keyboard, you've found it: the Roland BK-3.