Model SHB7000 with other country code

If you think about go up a Bluetooth headset SHB7000 the series, I can only guess about this product.
The technical details are the same as those of the models SHB7000 / 00 SHB7000 and / 10th However, this model is to acquire usually cheaper. There is therefore nothing more to say about the technical details, as this is to read in detail in the sister models.
If you wonder what the / 28 stands. This is the country code for another country (unfortunately I do not know which). However, if you have no problem with an English manual, you should be just as satisfied with this product, as with the more expensive models of the same production series.