The [Demo] MDR-NC11AWHI noise cancelling headphone has an in-ear closed-back design that reduces outside noise by more than 70%. The noise-canceling circuitry offers a maximum of 10dB noise cancellation in the critical range from 100 to 400Hz, where the human ear is most sensitive. This allows for a more enjoyable and isolated listening experience on planes, subways and buses by eliminating low end interference.
The MDR-NC11AWHI will run on a single AAA battery for up to 45 hours, and the battery compartment contains both the noise reduction on/off switch and an in-line volume control. The headband-free design allows for considerable freedom of movement, and use with portable audio devices for jogging, aerobic exercise, and other physically active applications.