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Pro It sounds awesome even if you are a lousy singer
Since pitch shifts come from your guitar, not your voice, it is easy to make it sound good if you're a half good guitarist.
Pro Small and tough
It can stand some punishment, and it is very portable.
Con Players that run very distorted sounds might have problems
They will reduce the voice expressions and make it difficult to nail the sound you want with the talking functions.
Con Vocal microphone not included
You will still need a decent vocal microphone to use this vocoder after you buy it.