The Audio Technica ATH-AD700X features a lightweight honeycomb aluminium casing, these open-air headphones produce no sense of pressure on the ears, offering a completely natural listening experience. Newly designed 53 mm drivers with bobbin-wound CCAW voice coils deliver spacious sound with superior highs and mids. The self-adjusting wing support automatically adjusts to your head size for easy-wearing listening comfort. A straight cord at the left earpiece terminates to a mini plug with included 6.3mm adapter.Audio Technica ATH-AD700X Specifications: Newly designed 53 mm drivers reproduce clear treble and midrange Bobbin-wound CCAW voice coils for superior power handling Full open-air type headphones produce no sense of pressure on the ears, resulting in a completely natural sensation Lightweight aluminium honeycomb casing with excellent acoustic properties Self-adjusting 3D Wing Support provides a comfortable listening experience; total ear-fit design minimises pressure Flexible raised-fabric earpads offer excellent wearing comfort and durability Highly conductive OFC single-sided cord with elastic TPE sheath to prevent tangles Gold-plated stereo 3.5 mm connector with 6.3mm adapter Specs: Frequency Response: 5 – 30,000 Hz Cable Length: 3.0 m (9.8′) Driver Diameter: 53 mm Sensitivity: 100 dB/mW Maximum Input Power: 700 mW Weight: 265 g Connector: 1/8″ (3.5 mm) mini stereo, gold-plated Maximum Input Power: 700 mW Impedance: 38 ohms