Peavey Sanpera I Foot Controller For use with Peavey Vyper series amps Add real time Whammy/Volume/Wah/Pitch Shifter expression pedal to any Peavey Vyper series amp Swappable expression pedals Dedicated tap tempo capabilities, Looper control Bank increment/decrement function, Roadworthy cast metal housing Legendary Peavey reliability Whammy/Volume/Wah/Pitch Shifter expression pedal 4 momentary selector buttons with LEDs,New Black version Looper activation and control Bank select function Roadworthy cast-metal housing, High-quality metal switches