Features : - Real-time vocal harmonies and high-quality effects in an affordable - Auto Harmony function automatically detects chords played on a connected guitar and generates perfectly matching harmonies, even during mid-song key changes - Solo singers can create harmonies by manually setting the song key with a dedicated panel knob - Hybrid mode creates harmonies based on both guitar chord input and the manual key setting - Friendly user interface that's simple to use - Easily dial up reverb and delay effects with a single knob - Enhance function controls dynamics and applies subtle pitch correction as you sing - Three memories for storing favorite settings - Runs on four AA-size batteries or optional PSA-series AC adapter - XLR mic input with phantom power