Check the listing for details. Korg Poly-800 II Additive Square Waveform Polyphonic Synthesizer 49 Keys Clean. Condition: Used. Listed at 649.00 USD. Very good cosmetic and working condition. The Korg Poly-800 II Additive Square Waveform Synthesizer is a 49-key, battery-powered, hybrid instrument. This keyboard synthesizer is perfect for creating unique and complex sounds. It features MIDI (DIN) In and Out ports for easy connectivity and two pedal inputs for added control. The Korg Poly-800 II is a classic instrument that has been used by musicians for decades. It has a unique sound that is perfect for any music genre. This synthesizer is in great condition and has been well-maintained. Get ready to create amazing music with the Korg Poly-800 II!WE OFFER FREE GROUND ONLY SHIPPING TO ALL 48 STATES. ALASKA AND HAWAII ARE NOT COVERED IN THIS OFFER. THERE WILL BE ADDITIONAL COST INVOLVED IN SHIPPING TO ALASKA OR HAWAII. ALL SALES ARE FINAL. ALL GEAR SOLD HERE IS FULLY TESTED, MOSTLY SERVICED AND WE MAKE TEST VIDEOS PRIOR SHIPPING. WE FULLY TEST EVERYTHING WE SELL THE DAY WE SHIP. THANK YOU