Audio Technica ATH-M40X

Professional Monitor Headphones Cutting-edge engineering and robust construction 40 mm drivers with rare earth magnets and copper-clad aluminum wire voice coils Tuned flat for incredibly accurate sound monitoring across the entire frequency range Circumaural design contours around the ears for excellent sound isolation in loud environments 90° swiveling earcups for easy, one-ear monitoring Professional-grade earpad and headband material delivers more durability and comfort Collapsible for space-saving portability Detachable cable (includes 1.2 m - 3.0 m coiled cable and 3.0 m straight cable) For professional studio tracking and mixing, as well as DJ monitoring SPECIFICATIONS:   Type Closed-back dynamic Driver Diameter 40mm Frequency Response 15 - 24,000 Hz Maximum Input Power 1,600 mW @ 1KHz Sensitivity 98 dB