Today Poineer Japan has introduced their advanced noise canceling capabilities new set of earphones, the SE-NC31C phones. It is said that the earphones  suppress up to 90% of the ambient sounds, which allow user to listen to music in the most nosiest places.

Well as for the feature you are looking at sound pressure level of 105 dB, a frequency response of 5 Hz to 16,000 Hz. The  SE-NC31C also uses an impedance of 34.5 Ohms and uses 18.5 Ohms when the noise canceling function is turned off. This is also new as the SE-NC31C are powered by one AAA battery that gives up to 120 hours of operation time.

The SE-NC31C is priced at $105 and should reach Japanese stores in early December 2010.