Simple Helmet Speaker System


Active Member
Hey there MoeSizzlac !,I'm about to build this awesome idea of yours,I'm just wondering if the fan it's just for getting your brain warmed or it has a special role in the voice circuit?.By the way,if the fan is necessary could you share the buying link?(I´m just replaying so you could pay me attention lol).
The fan is necessary for keeping your helmet visor free of fog. It doesn't contribute to the voice speaker at all.

I used 40mm x 10mm cage fans (