This cable expands every synth without a noise generator but an external audio input and a 5V source at the tip of a socket (e.g. an expression pedal input) and gives you digital noise. Initially the cable has been developed as an expansion for the Moog products Little Phatty and Minitaur but it works also with other synths etc. The Hirlostek needs to be provided with a 5V voltage, for instance at the tip of a expression pedal socket. A circuit inside of the bigger plug generates a bright digital noise you can use as audio or modulation source. The narrower plug carries the noise signal and is to be connected either with an audio input or a CV input. Hand made, military quality due to good Neutrik jacks.