Sony industry-leading noise cancellation evolves to further immerse you in your music. The addition of Sony proprietary HD noise canceling processor Qn1 masterfully eliminates the noise around you. Listen all day with up to 30 hours of battery life. Quick charging gives five hours of playback with just a 10-minute charge. Cord Length: Headphone cable (approx. 3.94 ft, OFC strands, gold-plated stereo mini plug); Frequency Response: 4 Hz-40,000 Hz; NFC: Yes; Cord Type: Single-sided (detachable); Volume Sensor: Touch Sensor. Diaphragm - Aluminium-coated LCP.