A couple things I learned during this project:
- True to warning, it does emit a high-pitched sound that can be heard. Not enough to interrupt a conversation or maybe be overheard by someone else in the room — but the wearer can hear it. Only a minor inconvenience, really.
- The wire is somewhat rigid and will attempt to retain it’s coiled shape even after being unwound. I recommend spending time straightening the wire before you sew it to any fabric. It’ll improve your results.
It took some trial-and-error to figure out how to securely sew it into the jacket but in the end I’m mostly pleased with the results. I say mostly because I’m less-than-pleased with the hood at the moment. I intend on ripping those stitches and redoing it differently (in the near future).