The Utopia Synth is an analog sound synthesizer produced by King Capitol Punishment, and based on voltage controlled oscillators. It consists of four square wave oscillators grouped into two sets. Within each set one is the modulator and the other is the main sound source. The four oscillators combine to form a variety of noisy pulses and harmonics. It is housed in a stompbox-style enclosure commonly used for guitar effects pedals, and all sounds are mixed down to one 1/4" mono output.
References
Utopia Synth Wikipedia(Text) CC BY-SA