“This portable keyboard synthesizer from Teenage Engineering is a great choice for musicians and producers on the go. With USB out, MIDI (DIN) in, MIDI (DIN) out, and USB in, it offers a range of connectivity options. The OP-1 features a sequencer, vocoder, display screen, speakers, and is USB compatible. It also has built-in effects and can be battery powered.” Click here to visit listing on eBay
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