Bluetooth!

I buy it because,most people were using it when I went to America.

Most people when the phone conversation did not use the phone at silicon valley.
And most were using Bluetooth or headphones.
It is Hands-free. phone call can hear it is very easy.

There are cases when you put a little whale, which can be viewed as soon as they get used to it.
and No burden to the ear.
Above is futuristic!

Prise was about 4000 yen.
There is also the butt of several hundred dollars, it is also pretty cool guy.



However, in Japan is not vogue,When used outside, so that looks like yourself talking to yourself, you must be careful.