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Mad Professor "Little Green Wonder" overdrive pedal (with its original box). In excellent condition. Works perfectly. Sounds amazing. It's a popular, high-headroom overdrive/boost pedal from the Finnish builder Mad Professor (known for high-quality, hand-made effects). It's often described as a refined take on the classic Ibanez Tube Screamer style of overdrive, but with more clarity, headroom, and a special EQ curve that gives it a more open, less mid-humped sound while still delivering great touch-sensitive drive.Controls: Volume, Body (which adjusts the low/mid EQ balance), and Drive.True bypass switching with a sturdy footswitch.Compact, durable enclosure with that signature teal/green finish.Simple, straightforward design — very popular for blues, rock, and as a always-on tone sweetener or boost.