The Holy Island Audio Blast Radius is an expression controlled oscillating fuzz pedal designed to add unpredictable and chaotic textures to an effects chain. It features three independent gain stages that can be toggled in and out to create combinations of gain and oscillation. The pedal includes a starve control that reduces voltage to introduce instability and oscillation alongside the main blast control that affects overall fuzz intensity and character. It can produce a range of sounds from heavy fuzz tones to trashy lo fi oscillations and chaotic sonic artifacts. An expression pedal can be connected to control the blast knob hands free.