This is the classic CRYBABY wah pedal, but it's the 95Q model, which automatically turns off when you take your foot off, like a Morley. One screw is missing from the back, and there are no rubber feet. It has a spring-return mechanism that automatically turns off (bypasses) when you take your foot off. Variable Q: Adjusts the strength of the peak. Volume: Adjusts the boost gain. Side switch: Turns the boost on and off.