The JD-Xi is a digital and analog synthesizer with a built in vocoder and drum machine. It features a handful of onboard effects such as reverb, delay, distortion, and flanger to name a few. It also has a 4 track 64 step sequencer. The digital part of the synth has 129 note polyphony and the analog part is monophonic. The synth is in excellent condition and has been kept in a smoke free studio. It comes with the original box, power source, and gooseneck mic.