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General| Brand | Yamaha |
|---|---|
| Model | PortaTone PSR-400 |
| Number of Keys | 49 |
| Voices | 100 |
| Styles | 100 |
| MIDI | Yes |
| Speakers | Yes |
| ROM | Yes |
| Effects | Reverb, Chorus |
| Display | LCD |
| Power Source | AC Adapter or Batteries |
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