Originally Posted by
jadocs
Good practice to rinse the strap and head unit with fresh water after each use to prevent exactly this.
Probably true for the strap, I'm not sure it matters for the transmitter.
But for me, that isn't going to happen, replacing the strap say, every two years, for $20 is less trouble. I do rinse the strap now and again just to keep it from getting too grody.