“Teenage Engineering OP-1 Field Portable Keyboard Synthesizer – White – Excellent. Model #TE002AS001A. Ran loop for 8 hours on battery, still going strong. Tested major functions- all OK. Comes with charger, USB cable, keyboard overlay, accessory knobs, matching earbuds and original box. Guaranteed to work properly upon receipt, but no warranty is offered.” Click here to visit listing on eBay
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