I believe this item is in excellent condition, having only been used a few times in the studio. Functionality has been confirmed. Simple cleaning has been completed. From the manufacturer: Mid Booster "ECM-Booster" This is a standalone effects pedal version of the Clapton mid-boost circuit, with added unique features. (The image has been updated with a NEW color. It's a matte finish paint that's close to denim blue.) Originally a mid-boost circuit for Stratocasters, this unique MIDDLE knob allows you to control the strength of the mid frequencies, enabling you to create the optimal boost sound in a wide variety of environments, regardless of the guitar or amplifier. It will be a great help not only for Clapton sounds but also as a booster for increasing volume.