Selling a working Casio CZ3000. The only major problem with it is that it can not save user patches. In order to save patches you would have to repair the battery compartment on the bottom of the synthesizer. Preloaded patches work fine and you can upload sysex patches via a computer. Other then that it’s missing a portomento button but the actual button still works. Missing slider caps on the volume and chorus faders but the faders work fine as intended. This is a great synthesizer for someone who works near a computer and is willing to save patches that way.