Zoom V3 Vocal Processor, Vocal Effects Pedal, 3-Part Harmony, Pitch Correction, 16 Studio Grade Effects, Battery Powered, for Streaming and RecordingBrand: Zoom Features: 16 Built In Effects Pads + Delay, Reverb and Compression Harmony Function for adding 2 back up harmonies Key and Chromatic Pitch Correct Can be used as an audio interface to record and stream Desk top or mic stand mountable, operating with AC power or 4 AA batterie Details: DescriptionZoom V3 Vocal Process with 16 Studio Grade Effects, Up To 3 Part Harmony, Compression, Delay, Reverb , Pitch Correction, Battery Powered, For