For sale is this Vintage Ensoniq ESQ-1 Digital Wave Synthesizer Keyboard Powers up but Untested. This item is being sold AS IS because we don't have the ability to fully test it. We do know it powers up and responds to the keys being pressed. Beyond that, we make no guarantees. Looks like there was some sort of modification that added a battery, one wire is unsoldered, not sure what they was meant for. NO RETURNS, NO REFUNDS! Shipping will calculate based on your location. I have other toys, videos, lots of different vintage items toys and games in my store along with some great collectibles. WE LOVE TO COMBINE SHIPPING COSTS TO SAVE YOU MONEY SO PLEASE CHECK OUT MY OTHER AUCTIONS AND MY STORE. IF YOU FIND SOMETHING ELSE, WE CAN POSSIBLY THROW IT IN THE SAME PACKAGE OR CHARGE A MINIMAL SURCHARGE FOR SHIPPING.