This is Morley's wah pedal. This model has been retuned to replicate the wah sound of the early MORLEY models produced in the 70s and 80s. Compared to current products, the variable frequency range is shifted to the high frequencies, providing the unique wah effect of the early models. There's a switch on the side of the pedal, so if you step on it just right, you can use it like a half-wah (FIXED WAH). It's in good condition with no noticeable dirt or damage.