The Boss VE-5 RD is a multi-effect processor and looper for vocals with Vocal-Effects Dynamic Compressor-De-Esser, Enhancer, Pitch correction, Delay, Reverb, and simultaneous harmonic and tonal correction. It includes 50 sound presets, IN connections with XLR/jack with phantom power, aux/input with 3.5mm jack, and operates with power supply (not included).