High sound quality design using solid shaved housings from Hokkaido ^^ One-touch attachment with newly developed precision mechanism metal ear hangers ^^ Slide-fit mechanism for a snug fit ^^ Powerful sound with a large diameter 1.1 inches (28 mm) driver using strong magnetic neodymium magnets ^^ Adopts tangle-resistant high elastic elastomer cord 0.2 yd ( 0.6 m) ( 3.3 ft (1 m) extension cord included)