There is one thing for sure about headphones: they get tangled. No matter what you do, or what gadgetry is employed you’ll eventually end up with a knot or worse yet a rat’s nest of cordage. Although the Zip Up Headphones concept won’t be complete devoid of tangles, it’s a great idea for keeping your buds stored neatly and tangle free. And get this, the zipper flap doubles as a volume control. My only concern would be the added weight.