Thank you for viewing our item. Item Description Brand Denon Model name AH D1100 color black Headphone model Closed type Connection Technology Wired Uses a large-diameter 50mm diaphragm Acoustic optimizer structure that reproduces optimal acoustic characteristics by adjusting the sound pressure balance in front and behind the diaphragm Anti-vibration housing with hybrid structure of aluminum and resin New shape headband for a comfortable fit Uses low-resilience urethane that provides a soft feeling of wearing and ear pads with three-dimensional stitching that feels good on the skin. Comes with an extension cord (3.5m) for indoor enjoyment Gold-plated plug with high-grade aluminum sleeve that contributes to high sound quality for both the main unit and extension cord