Bought a couple of years ago second hand, very light home use since then. Never had any trouble with it. Built like a tank, sounds great.
Sat on the shelf for a few months and shifting some lesser used gear. Tested and still works perfectly.
"This is a vintage DOD FX40B guitar effects pedal which functions as a graphic equalizer (GEQ). The pedal is suitable to use with electric guitars and was manufactured in the United States. It is designed to enhance the sound quality of guitars and can be used as an equalizer to modify the frequency response of a guitar. The DOD FX40B pedal is in good working condition and has been tested before listing. This item is perfect for musicians who are looking for an affordable and reliable solution to enhance their guitar sound. Get this vintage DOD FX40B guitar effects pedal and experience a whole new level of sound quality!"