The Sony PFR-V1 Personal Speakers look like standard headsets but take a look close and you will see a couple of mini speakers rather than the usual cushioned earphones. But while the speakers may look small, don’t let that mislead you. These are actually powerful speakers that have been positioned to make you feel like you are in the middle of a concert hall.
They offer a frequency range of 10,000Hz with bass reflex duct to deliver deep bass and high audio quality. They are powered by 2 AA batteries and weigh just 93g. These Sony PFR-V1 Personal Speakers retail for $433.00.
(Source) Japan Trend Shop