Korg opsix, FM Synthesiser, 37-Key keyboard, 6 Operators, 5 Modes (FM, Ring Mod, Filter, Filter FM, Wave Folder), 32-Voice polyphony, Modulation section with 3 ADSR envelopes and 3 LFOs, 64 Favourites memory, Up to 500 storable sounds (250 factory presets), Arpeggiator, 16-Step polyphonic step sequencer, Motion sequecing for up to 6 sound parameters, 3 Effect instances with 30 effect types, OLED display, Pitch and modulation wheel, 2 Line outputs: 6.3 mm jack balanced, Stereo headphone output: 6.3 mm jack, Input for sustain pedal: 6.3 mm jack, MIDI input and output, USB, Dimensions (W x H x D): 565 x 90 x 338 mm, Weight: 2.9 kg, Includes 12V DC power supply and Reason Lite, Suitable optional case: Art.#509372# (not included)