Korg microARRANGER 61 Mini Key Portable Keyboard Arranger Bundle with SD Card, Headphones, Instrument Cable, and Polishing Cloth 61-key Natural Touch mini keyboard; Velocity sensing Built-in stereo speaker system 4 Stereo Effect Processors with 89 effect programs 304 Styles; each is a complete and interactive musical environment for capturing your inspirations 660 Preset Sound Programs and 128 User Programs provide excellent Korg sounds