Vintage Yamaha PortaSound PSS-31 Electronic Keyboard 49 Keys 1992 Consoles & Accessories The product was specifically designed

The product was specifically designed to be plugged into an electrical outlet

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and mounted slides

behavioral AI

Vintage Yamaha PortaSound PSS-31 Electronic Keyboard 49 Keys 1992 Consoles & Accessories The product was specifically designedYamaha PortaSound PSS 31 Keyboard. In working order but missing power knob. Still same to function without knob. main features: 49 midsize keys 2 built in speakers (reasonable quality, stereo) polyphony up to 12 notes (including rhythm, accompaniment etc.) 100 preset sounds: only 40 normal sounds 16 layered sounds ("dual voice") 11 key split combinations 5 with sustain 13 "harmony voices" (employ duo, trio effect etc., only monophonic playable) 15