Introducing a fully customized Crybaby, the favorite of TOOL's Justin Chancellor! The Justin Chancellor Crybaby is a signature Crybaby that was customized from the chassis design down to meet the requests of Justin Chancellor (TOOL), one of the world's leading bassists known for his impressive bass sounds that make full use of wah and fuzz. You can switch between "Wah Mode," which uses the red Fasel inductor to create a traditional, aggressive crybaby sound, and "UK Filter Mode," which emulates a British-made filter with a smoother envelope curve. When combined with the built-in fuzz, you can create a wide variety of sounds, from aggressive sounds to tone control that's ideal for melodic phrases. It's useful for both bass and guitar. The included switch cover makes it easy to turn the fuzz on and off while controlling the wah. 9V power supply: 006P dry cell battery or 9VAC adapter