Boss PW-10 V-Wah Pedal World's first COSM modeling wah pedal with 6 classic and modern wah pedal models Noise-free operation with advanced infrared pedal detection 8 onboard Overdrive/Distortion effects to perfectly complement the wah sounds New Voice mode simulates talking vowel sounds New Double Resonance mode creates analog synth-type sounds Uni-V effects produces vintage swirling rotary sounds 3 digital memories for saving customized wah sounds for instant recall Wah range knob a