StudioSoba
via this auction

"This was the top of the line model of keyboard synth organs that company made in 80s with polyphonic organ and monophonic synthesizer voice with 2 octave settings and switches for envelope, LFO, vibrato, hold VCF, VAC/ VCF, low pass, band pass, loud- soft and a "cut off" knob - the synth voice can be layered and modulated with the polyphonic organ voice. Rhythm machine presets with tempo and automatic accompaniment, chord memory, single finger chord ("O.F.C.") and minor & 7th pushbuttons. 8 semi- OBS preset rhythms {tango, boogie, disco, samba | waltz, march, slow, bossa}, separate bass + chord volume knob), 44 keys, headphones and line output."