The Sony XBA-NC85D is claimed as the world’s smallest and lightest noise cancelling headphones. These headphones feature Sony’s “Made in Japan” balanced armature drivers, a box-free design, a frequency response of 5-20,000Hz, a 106dB (150mV) of sensitivity and a gold-plated L-shaped stereo mini plug. Its Ni-MH (40mAh) battery pack provides enough juice for up to 20-hour on a single charge. Sony will launch the XBA-NC85D noise cancelling headphones in Japan in November 2011 and in the US market later this year.
