The M-Series ATH-M40x professional monitor headphones are tuned flat for incredibly accurate audio monitoring across an extended frequency range. Your studio experience is enhanced with superior sound isolation and swiveling earcups for convenient one-ear monitoring. Engineered with pro-grade materials and robust construction the M40x excels in professional studio tracking and mixing as well as DJ monitoring. FEATURES 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 9 swiveling earcups for easyone-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 mixingas well as DJ monitoring Tech Specs Type: Wired Open/Closed: Closed Fit Style: Circumaural (Around the Ear) Driver Size: 40mm Noise Attenuation: Passive Noise Isolating Frequency Response: 15Hz-24kHz Impedance: 35 ohms Cable Type: Straight, Coiled Cable Length: 9.8' Plug Size: 1/8", 1/4" adapter Detachable Cable: Yes Features: Swivel Earcups Foldable: Yes Color: Black Case/Gig Bag: Carry Pouch Weight: 0.53 lbs. (without cable and connector) Manufacturer Part Number: ATH-M40x