The first vocal effector from JOYO, specially designed for singing! VOCAL LAB offers fabulous harmony effects: 9 vocal harmony effects, tonality(24 major or minor diatonic scales)is available, with Maj/Min toggle switch, up to 2 tracks of harmony can be added simultaneously. Besides, VOCAL LAB features independent adjustable vocal reverb effect, independent footswitches for harmony, and reverb effects respectively. With 48V Phantom power, it supports several types of the mic.