Im a total newb as far as this stuff goes, but I got acheap bluetooth mic in my helmet, and then went an alternate route. Without the plate on it that rests against your backplate (leaving the jetpack “open”), the jetpack is a big giant echo chamber. I velcrod my amolifier inside of it turned it up about 3/4 of the way and when my voice comes out it’s daaaaamn loud. It has the added benefit of having my voice come from nowhere in particular, just like a big ambient speaker playing in a radius with me in the center. Whether the person was in front, behind, or to the side of me it was still pretty loud. But im a newbie still heh