Clearly both devices work. There are hundreds of testimonials for the QLink attesting to this. Something you attach importance to. I'm sure if you emailed the makers of the QLink they would confirm wearing the pendant would improve your listening experience.

Naturally I would say in both cases this is because of auto-suggestion. But that's entirely beside the point.

I'm not as predisposed or open to suggestion as you or others are, so it's unlikely the QLink would work for me, even if I were to try. I'm sure the QLink would work for you which is why I suggested it.