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General| Type | Portable Keyboard |
|---|---|
| Brand | Yamaha |
| Model | PSR-90 |
| Number of Keys | 61 |
| Voices | 100 |
| Styles | 100 |
| Effects | Reverb, Chorus |
| Dimensions | 946 x 368 x 118 mm |
| Weight | 4.5 kg |
| Display | LCD |
| Speakers | 2 x 6W |
| Connections | Headphone |
| Power Supply | AC Adaptor |
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