The Sony MDR-XB300 Extra Bass Headphones eliminate any distracting noise around so you can fully indulge in your own personal listening experience. It’s equipped with 30mm drivers that accurately reproduce ultra-low frequency sounds & deliver deep bass reproduction. Unlike other headphones, the Sony MDR-XB300 comes with a Direct Vibe Structure to provide high audio fidelity, while the king-sized ear cushions ensure supreme comfort. The Sony MDR-XB300 Extra Bass Headphones includes a carrying pouch as part of your package.