The problem with headphones is that they have cables. And cables get tangled. Sumajin's Smartwrap is a headphone cable organizer that can help you avoid wrestling with such wires. You simply run your headphone cable through the notch at one end, wrap it around the body of the Smartwrap until you've eliminated unnecessary slack, and then run it through the second notch at the other end -- your cable is only as long as it needs to be. The Smartwrap doesn't add much weight to your headphone cable, and when you're done listening, you can wrap the rest of your headphone cable around the Smartwrap for storage. We've been using our review units at the gym and have discovered that it's much easier to work out when your headphone cables aren't getting caught on weights or wrapped around cardio equipment!
Made of silicone rubber, the Smartwrap is 2.8" x .9" in size and is available in white, clear, black, orange, blue, green, purple, red, and pink to match any headphone cable. (The company also sells replacement foam earbud covers in red, blue, orange, green, and yellow.)--Dan Frakes
Keeps your headphone cable short and tangle-free