https://www.cnet.com/news/zippear-is-the-simple-earphone-cable-manager-we-need/

Always finding your earphone cables in a knotted mess? Well, that's a problem that easily goes away with Israel-based Zippear's magnetic solution.

Using magnets to manage cables in general isn't new, but Zippear's nifty idea takes it further by having more magnets to easily arrange how the cable is looped. The result is a tangle-free solution, and I know, because I tried out a 3D-printed prototype.