Large aperture 40mm drivers with CCAW bobbin-wound voice coils  Integrated high-rigidity baffle with glass fiber for clearer midrange and treble reproduction  High density aluminum housings, featuring a sleek hairline finish  Swing-adjust design with an aluminum swivel mechanism for a custom fit  Sleek, modern design aesthetics  Tangle-free flat cable  Foldable, portable design and protective carrying pouch Type Closed-back Dynamic Driver Diameter 40 mm Voice Coil CCAW Frequency Response 9 - 26,000 Hz Maximum Input Power 1,000 mW Sensitivity 103 dB/mW Impedance 34 ohms Weight 130 g Cable 1.2 m Y-type Connector 3.5 mm (1/8") mini-stereo, gold-plated (L-type) Accessory Included Protective carrying pouch