Automated winder, storage, holder, keeper and organizer for iPhone, Samsung, Sennheiser, Sony and other brands of earphones, earbuds &ndash; (Blue) Stops cable tangling Automatically winds up your earphone by the push of a button with an internal spiral spring (patented design) Works with cables up to 120 cm (47") Works best with cables not thicker than 3.5 mm (iPhone, iPad earphones or similar work well) To release earphones pull cable from both sides