* * it digitally shifts pitches. * *it has various settings, like you can make it go up an octave, up two octaves, down an octave, down SIX OCTAVES (on the whammy wah, not sure about the orig.), and various harmonies of 3rds, 4ths, 5ths, 38792ths (ha, not really). * *you can also do the original pitch plus up or down an octave. * *
* * plus you can go in between original sound and the fake sound with the pedal, so you get all the in-between notes. *
* * they're pretty fun, but i find i really don't use mine very much. *plus the digitech xp100's wahs suck b/c there's very little control w/ the
expression pedal. *