Phiaton MS 300 Premium Headphones With Double Shelled Carbon Fiber Enclosure and Closed-Ear Type Rear Enclosure For Concert Hall Quality Sound Double shelled carbon fiber enclosure for high quality audio Optimized airflow delivers concert hall sound quality Closed-ear design promotes greater noise reduction Flexible 'fold and go' design comes with Compact carrying case for easy travel 3.5mm standard gold plated plug plated plug