The SRH550DJ Headphones from Shure deliver full-range audio performance, comfort, and durability for DJ use and personal listening. 50 mm Dynamic drivers deliver enhanced bass, while padded ear cups with supra-aural design swivel 90 degrees for flexible wearing positions and full isolation. Includes a carrying bag and a threaded 1/4"(6.3) mm gold-plated adapter. Features Full-range frequency response with enhanced bass optimized for both DJ mixing and personal listening. Closed-back, supra-aural design rests comfortably and securely on the ears with full isolation Adjustable, collapsible headband with 90-degree swivel ear cups for comfort and flexible wearing positions Ultra-lightweight design folds to very small size for maximum portability.