The distortion that is commonly generated by the scattered reflection of sound from surrounding surfaces is dramatically reduced by noise cancelling with digital signal processing to reproduce highly pure sound. Less data loss with digital connection contribute to higher quality sound closer to original. Place them freely with merely 110mm depth. By collecting the high sound quality technology of Panasonic, slim design & high quality sound can be realized at the same time.A reduction in power consumption has been achieved. Designed to consume as little power as possible in order to save natural resources.