Review on Nite Ize Curvyman Cord Supervisor - Efficient Earbud Organizer, Tangle-Free Headphone Cord Wrap - Black by Donna Taflinger

Really can't think of anything simpler. Literally just stick the end in the bottom hole and wrap the cord around the middle. Then snap the end of the earbuds into the top hole and you're done. Like I said, easy. The downside is that unless you're really obsessed, the cord never coils tightly. Always a little loose. Since all my earbuds have two earbuds, it's a bit difficult to get both cords into the hole. Even if you do, it will slip a little and make the main body loose. So not good for my headphones. But I have a USB headset that I use for work and it works great for that. Mainly because I don't put the headset in my backpack and carry it around with me. The design should also allow for the cable to be shortened and it's great for that. As long as you don't move a lot. When I tried to use it while working in the garden it kept getting stuck on everything. Shirt, gloves, tools. Not a bad product, but there are better ones for classroom use.