Boss VE-8 Acoustic Singer Compact, all-in-one preamp and effects solution for singers who play acoustic guitarDial in rich, sophisticated BOSS sound processing with simple, intuitive controlsStudio-quality vocal processing includes four types of ambience effects plus Enhance, chromatic pitch correction for live vocal tuning, and moreCreate natural vocal harmonies in real time based on guitar input or manual key settingsAlso includes a vocal doubling effect, plus more dramatic processing like hard-tuned electronic voices,