DigiTech Whammydtv-01 DT Drop Tune Guitar Effects Pedal True Polyphonic Pitch Shifting and Whammy effects in a single pedal Drop or Raised tuning by 7 half steps or an entire octave Momentary footswitch for Hammer-on and Pull-off effects True Bypass FS3X input for hands-free selection of Whammy and Drop Tune settings