Hello.  I am Japanese and of course live in Japan.  
The other day, when I traveled to the United States, I purchased a DJI Goggle RE and an Ocusync Air System set that had not been released in Japan and brought them to Japan.  
After returning home, I set up and activated this set.  
As a result, the image is displayed, but it seems that settings with external transmitters and OSD settings cannot be made.  
After all, can this product not be used in Japan?

Hello.  I am Japanese and of course live in Japan.  
The other day, when I traveled to the United States, I purchased a DJI Goggle RE and an Ocusync Air System set that had not been released in Japan and brought them to Japan.  
After returning home, I set up and activated this set.  
As a result, the image is displayed, but it seems that settings with external transmitters and OSD settings cannot be made.  
After all, can this product not be used in Japan?