zipper-earphone / earphone

When we use an earphone, the earphone wire is easy to wind with each other.

Zipper-earphone is a kind of earphone that solve this annoying problem by simply adding a zipper between the two earphone wires.

If we want to use the earphone, we just need to open the zipper. And if we don't use it, we can just close the zipper.
When we use an earphone, the earphone wire is easy to wind with each other.When we use an earphone, the earphone wire is easy to wind with each other.