・LINX AUDIOTM technology provides award winning sound quality <br>・State-of-the-art active noise cancellation (ANC)， to reduce undesirable sounds and background noise Operates as normal headphones <br>・Ideal for creating your own personal space filled with full rich sound or nothing at all <br>・Lightweight adjustable headband provides superior fit Full-size ear cups with soft cushions swivel for maximum comfort <br>・In-line volume control enables easy adjustment to safe listening levels for hearing preservation 体積：6.5 x 2 x 8 inches ; 1.6 pounds<br>重量：2 pounds (View shipping rates and policies)<br><br><br>