CordCruncher

Reviewed in the September 8, 2012 Wall Street Journal as follows.

A teenager's backpack can be treacherous for headphones, filled with heavy textbooks to get crushed under, binder rings to get snagged on. The CordCruncher, which has a latex sleeve that protects the cord from tangling or splitting, is one of the most teen-proof earbuds you can buy. Using them takes practice: sliding off the snug-fitting sleeve requires effort, and unfurling the cord on a crowded train without throwing any elbows can be a challenge. But when the CordCruncher is retracted, you can plug one end into the other to create a snarl-resistent loop that fits neatly around your wrist.

Orange, Black, or Blue: $24.99.