Korg microKORG S 37-key Synthesizer/Vocoder Features: 37-key analog modeling synthesizer Built-in 2.1 speaker system delivers top-notch sound Expressive velocity-sensitive mini keys Powerful dual-oscillator synthesis engine offers a wide selection of waveforms 8-band vocoder yields all kinds of crazy vocal effects 192 great-sounding presets to get you started 4 filter modes, 3 modulation effects, 3 delay effects, and a 2-band EQ 2 external audio input jacks pass instruments, pre-recorded music, and more through the filter and effects Attractive white panel with light wood ends