BOSS XS-1 Poly Shifter Pedal with Advanced Pitch Shifting for Guitar and BassThe BOSS XS 1 Poly Shifter delivers instant, precise pitch shifting in a compact and versatile pedal. Powered by advanced BOSS algorithms, it transforms your instruments pitch while preserving natural tone, clarity, and response. Shift tunings seamlessly across + seven semitones or + three octaves, create rich detune effects, or simulate capo changes all without compromising sound quality. With intuitive controls, selectable pedal modes, and support