Sony Slims Down Its Noise Canceling Set With MDR-NC40

Sony figured out two reasons people don't buy flagship noise-canceling headphones—whether Bose or Sony or others: they're awfully expensive and freakin' huuuuge. The MDR-NC40 coming out in March costs $100, and is both cheaper and slimmer than the bulky $400 NC500D. This set runs for 40 hours on a single AAA battery… » 2/26/08 3:01am 2/26/08 3:01am