Moondrop Littleblack Bluetooth 5.0 2-Pin Cable

If, when you say "semi-high-end," you mean more than a couple hundred bucks, I believe you will be disappointed by the fit and finish of this cable regardless of it's functional adequacy. I've seen a couple of boutique braided custom wireless cables come and go on here that would be better suited to nicer gear. Personally I've just been using the Moondrop cable to convert soup-du-jour Chi-fi into gym gear.

Great, thanks for the response! I think I may give this a shot, it's been surprisingly difficult to find a quality Bluetooth cable for semi-highend IEMs. Wish they made it with other connection types. Seems to be a glairing whole in the marketplace.

lol totally understood. Yes, it is still holding up well as of now - I don't use it daily but the battery seems to be about on par or a little under the claimed spec, and nothing else bad has developed about the cable over time.