The Analog Four is a 4 voice analog synthesizer with precision digital control. There is a sequencer per voice with total timbral control over each voice individually. It can be used as a poly synth when connected to a keyboard and all the voices can be differently set, allowing for very unique sounding polyphonic playing. This MKI unit is in great shape and includes the power, USB cable, and the original box. Unit has very minor paint chipping on the front left corner.