Pioneer HDJ-500 Professional DJ Headphones Designed for exceptional fidelity, style, comfort and affordability Stylish design matched with great sound quality providing clear audio reproduction, especially in the critical low and mid frequency ranges that are key for remixing Designed for durability, the main structure of the headphones is made with magnesium alloy for a lightweight feel and toughness Features a rotating arm structure that allows the user to rotate the right earpiece forward and back by as much as 60 degrees .