The pinnacle of pitch shifting, the DigiTech Whammy pedal! This is the 4th generation model! After the 2nd and 3rd generation models, which incorporated various innovations, this unit has a look that follows the original, but has been improved for operability, such as adopting a vertically long foot pedal to match the length of the foot. A new feature is the "DIVE BOMB" sound. Combined with the pitch shifter/octaver/harmonizer functions, this is a unit that will be a great help when you need it.