||Japan Primer for the Mac Techno-Tourist|
When considering a purchase here one of the first things to check is if the product is for use only in Japan. Some specs could be on the box even if you don't read Japanese you can see 100v. This indicates that it's only for Japan. 100-240v indicates that it's for worldwide usage.
Packaging failing check the display item and it's usually right on the product as well.