The Cry Baby Rack Module gives more control over your wah tone than any wah pedal in the world. The 6-position switch lets you select the sweep frequency range, and the variable Q control determines the wah's bandpass shape. The adjustable boost (up to +10dB) makes the Rack Wah even more flexible. You can connect up to six pedals and place them anywhere onstage. The two outputs give you an astounding amount of routing options for unprecedented versatility.