It makes the clicking even when running on batteries and with it being the only pedal. But with that I did find I guess is a solution. I moved the pedal board a little farther from my amp and it stopped. I’m using a Markbass Little Mark III. So now I think I’ve have the clicking under control, I know compressors will add some hiss, it’s just annoying because to me it’s a little excessive and I don’t like the EQ adjustments that I have to make to try to eliminate some of it.