Hitachi Maxells iPod-only noise canceling headphones

These innovative iPod only headphones by Hitachi Maxell connect to your iPod via the dock connector and use your iPods power to block out up to 20dB of noise. The NP-NC20 phones currently are only compatible with 4th generation or later iPods and do not work with the iPhone or iPod touch–boo. Get them in Japan only for around $80. [via Gizmodo]