The Boss PW-10 V-Wah is a first-of-its-kind programmable COSM-based modeling wah. But wait, there's more. The Boss PW-10 gives you instant access to 6 classic and modern wah pedal sounds, as well as all-new Double Resonance, Uni-V, and Voice sounds never found in a wah pedal before. The V-Wah features onboard overdrive/booster effects plus 3 digital memories for storing your favorite sounds. Also features noise-free infrared operation..