Korg Monotribe Analogue Ribbon Station True self-tuning analog synthesizer voice - VCO, VCF, VCA, and LFO with 3-mode ribbon keyboard 3-part analog drums: (Bass Drum, Snare Drum, Hi-Hat) featuring step-based groove creation Active Step provides realtime groove tweaking; Flux Mode allows step/non-step synth-voice sequencing Sync In & Out jacks sync multiple units - Audio (Filter) input; Line output; Headphone output Optional battery operation, built-in speaker and compact size deliver on-the-go groove-making