The Wave Cannon "Zero" is an updated model of Caroline's popular distortion pedal.  This model still retains buttons like Volume, Tone and Gain but has a new drive Shape and Volt controls.  This version's Shape control is tweaked to produce more depth to low and medium gain sounds.  The Voltage control lets users experiment with more broken textures with their gain--think of a battery dying.  The Zero also includes an Onboard Havoc positive feedback footswitch and a Two-way Order toggle for signal chain integration.  The signature HAVOC control gets things "messy" and is best used for tuning and mixing the self-oscillating feedback signal.  The effect can now function both in the beginning or end of your chain.  The pedal is in excellent condition with a minor scratch on the back.  It comes with the original box, sleeve, pick and manual.

The unit shows one scratch on back near the top right corner.