CASIO Casiotone P-82 main features: 32 mini keys built-in speaker (with pleasant, loud mid-range resonance) monophonic main voice 8 OBS preset sounds {violin, organ, harpsichord, piano, celesta, trumpet, clarinet, flute} 12 preset rhythms {rock, disco, 16 beat, swing 2 beat, swing 4 beat, samba, bossa nova, beguine, tango, march, slow rock, waltz} volume switch (5 steps) tempo +/- buttons (16 steps?) ROM- Pack music cartridge slot for melody guide and "auto play" (jukebox mode) "melody guide" keyboard play training feature with key lighting (32 red & green LEDs above the keys), 4 levels and automatic rating 2 "one key play" buttons (to step note by note through ROM musics) semi- analogue sound generator similar like VL-1 (only monophonic keyboard play, but additional 4 note polyphonic accompaniment during automatic ROM music play). The digital envelopes (with audible zipper noise) are linear and thus sounds unrealistic because they fade silent too soon. rhythms consist of dull and distorted digital (squarewave?) blips + simple shift register noise {base, low tom, high tom, snare, cymbal} CPU= "HD61703B01, 5L 13" tuning adjustment trimmer headphone and power supply jack Very good esthetic and functional condition. Included: batteries, ROM card Pack, original box