Designed to allow audiences to directly view performers' control inputs, the Helio features eight membrane potentiometers. The potentiometers, along with user-mappable LED indicators, are arranged in an upright manner, providing audiences with clear, unobstructed views of the performer interacting with audio or visual software. Each membrane potentiometer can be individually mapped, allowing for endless customization. Software allows the potentiometer to be treated either as a continuous input or as a mappable series of buttons, further increasing the Helio's flexibility. Jim Murphy debuted the Helio at the KarmetiK Machine Orchestra in January, 2010.