This is a Jim Dunlop Cry Baby wah pedal. I bought it new in 2019 and used it twice in live performances. I'm selling it because I got the mini version. The wah turns off automatically when you take your foot off. It has knobs for frequency and volume, and a boost switch. When you open the back cover, there's a knob to adjust the time it takes to turn off after you take your foot off. The type and position of the knobs on the side are marked with a white pen for easy identification. Velcro is attached to the back. Thank you for looking.