I purchased this new several decades ago and it has been sitting in a sunny spot at home ever since. I haven't used it much, but I think there's some degradation from UV light and aging, and it's gotten a bit dirty. Please consider this if you are interested. If you are concerned about the condition, please refrain from purchasing. A yellow overdrive pedal capable of creating a wide variety of sounds. - Model Name: TURBO Over Drive OD-2 - Color: Yellow - Brand: BOSS - Controls: MIN/MAX knobs (volume, tone, gain) - Input/Output: INPUT, OUTPUT jacks Thank you for looking.