Sony MDR-NC6 Noise Canceling Headphones

With these Sony noise-canceling headphones you enjoy more music and while limiting other noise. A built-in noise-canceling circuit produces an anti-sound signal that synthesizes ambient noise giving you a quieter listening environment. Headphones also feature a slim swivel folding design for easy storage, powerful neodymium magnets, an in-flight plug adapter and carrying pouch. Features: * Reduces exterior noise by more than 70 percent (10 dB at 300 Hz) so you can hear music against a quieter background * Active noise reduction from 40 to 1,500 Hz using 1 AAA battery (not included); extended battery life approximately 30 hours * Compact size and folding design allows easy storage in a backpack, briefcase, or purse * Noise-canceling on/off switch; headphones work with or without power * Includes soft carrying case and airplane adapter plug