If you're stuck between settling for drab vocals or dishing out serious cash for a massive vocal processor, then you're going to love the BOSS VE-2 Vocal Harmonist. The VE-2 pack's awesome harmony styles, studio-style processing, and essential effects all into a compact, portable, and battery-powered (optional AC adapter available) module you can take anywhere. Let's take it from the top. In all, the VE-2 gives you a dozen 1- or 2-voice harmony settings, each with a variation for a total of 24 harmony styles. You can dial in the key manually, plug in a guitar to have it track the chords your playing, or use a hybrid of the two modes to get the best results possible.