About BoT purchased at US BoT Shop
It can only be used within the United States.
About BoT purchased at Japan BoT Shop
Since the BoT device sends location information using the LTE network in Japan, the BoT device cannot be used outside of Japan.
However, if the person possessing the BoT device is in Japan and the person monitoring is overseas, the location information can be confirmed as long as there is an environment where the internet is accessible.