Electro-Harmonix Slammi Polyphonic Pitch ShifterThe Electro Harmonix Slammi polyphonic pitch shifter harmony pedal revolutionizes foot controlled pitch shifting with a powerful new algorithm that yields tremendous improvements in tone. Three octave polyphonic dive bombs, smooth as silk pitch shifting, fixed interval harmonies and bends plus much more with the Slammis precise control and glitch free operation the only limit is your imagination. Features: Advanced new algorithm that sounds great and