No incluye adaptador de voltaje!Main features: 49 midsize keys built-in speaker (with a slightly unpleasant mid- range resonance) 8 note polyphony (only 4 notes with accompaniment) separate knobs for main and rhythm + accompaniment volume tempo knob 10 semi- OBS preset rhythms {rock 1, disco, swing, samba, beguine | rock 2, march, waltz, bossanova, tango} selected by a 5-step slider + switch 20 preset sounds {pipe organ, tibia, flute, piano, vibraphone, jazz organ 1, chorus, wah brass, funky, synth bells | wood wind, full tibias, oboe, celesta, xylophone, jazz organ 2, synth brass, cosmic flute, banjo, chime} selected by 10 OBS buttons + "select" button "casio chord" switch {off, fingered, on} "accomp. select" switch {rhythmic, arpeggio} chord memory switch (chords stay held after releasing key when on) "octave down" switch (transposes main voice 1 octave down, works only in chord mode). rhythm "intro/ fill-in" and synchro buttons sustain switch vibrato switch {off, on, delayed} sequencer with edit feature (345 note steps + 100 chord steps, but only monophonic main voice + 7 standard chords, awkward to use) 2 "one key play" buttons (to step note by note through sequencer musics) "melody guide" keyboard play training feature with key lighting (37 red & green LEDs above the keys) barcode reader pen to load songs from special song books into the sequencer LCD display shows the selected preset sound, the current chord and the current sequencer step number CPU "NEC D7802G 038, 8319EX" (64 pins with strange zigzag layout) which outputs trigger pulses for external analogue drums and controls 2 soundchips "HD43517, 3G 43" (42 pins) those output timbres based on 2 mixed digital sine(?) wave tones with different digital envelopes. analogue percussion {base, snare, open cymbal, close cymbal, woodblock} which uses transistor noise for cymbal and snare tuning knob headphone and line output jack