A helmet attachment is provided, comprising: a shell having a concave bottom; a base having: a convex top affixed to the concave bottom of the shell; a concave bottom affixable to the convex top of a helmet; and an air flow channel formed in the convex top of the base for guiding air through to an exit in the concave bottom of the base; a power and electronics module secured within a cavity in the shell, comprising: a power source; and a 5 volt power output connector electrically coupled to the power source and configured for charging a small electronic device; and a heater electrically coupled to the power source.