OverviewGet ready for heavy-duty bass performance on the MDR-XB600. With an Advanced Direct Vibe Structure, mighty 40mm driver units and luxurious leather ear pads, these Extra Bass headphones deliver forceful, dynamic bass in ultimate comfort and style.Advanced Direct Vibe Structure40mm driver unitMultiple folding designSeamless ear padsSoft head cushionsTangle-free serrated cordClear and powerful :Feel the power of pure bass with the Advanced Direct Vibe Structure and high-energy neodymium magnetsSmart design:The stylish folding design not only lets you carry your music anywhere, it makes an elegant statement tooEase and comfortIts serrated cord keeps those pesky tangles away, and the ultra-thick pressure-relieving pads let you lose yourself in those beatsSpecification:Type : Closed, dynamicDriver Unit : 40 mm, dome type (CCAW Voice Coil)Sensitivity : 104 dB/mWPower Handling Capacity : 1,000 mW (IEC)Impedance : 40 ohm (1kHz)Frequency Response : 4 Hz-24,000 HzCord : Litz cord (Y-type)Cord Length : 1.2mPlug : Gold-plated L-shaped stereo mini plugWeight (without Cord) : 220 g without cord