Product Introduction Folding type professional headphones with high sound quality and high input resistance. Adopting a 40 mm aperture unit. Gold plated 2 way plug corresponding to stereo standard jack and stereo mini jack. Responding to the use of professional from Amazon High sound quality · High foldability type folding type business headphone for personal use Adoption of 40 mm driver unit Realized high sound quality · high resistance input (maximum input: 1,000 mW) as monitor headphones for business use. Adopt large diameter 40 mm driver unit and neodymium magnet, reproduce clear and powerful sound. Folding type convenient for carrying and storage Folding type convenient for carrying. A carrying porch is also included. Adopting an unnecessary curling cord Suppressing transmission loss of voice and using a supple curl cord using supple OFC litz wire. Gold-plated 2-way plug Stereo compatible with standard jack and stereo mini jack. Convenient click scale type slider Adjust the length of the head band with a graduated click scale slider.