The
BT-300 glasses have a proprietary plug that connects into the android controller, the android controller has a micro usb port for only charging and connecting to a pc.
It does not have a USB-C port, so it can't connect to the
Smart controller. I don't believe you can configure the micro-usb port to accept a video feed e.g. from the
SC.
The glasses in the
BT-300 and the BT35-E setups have the same proprietary plug, that connects to either the
BT-300 android controller or the BT-35e interface unit.
The BT35-E interface unit does have a USB-C input for video.
So if you have a
BT-300 you will need a BT-35e interface unit to connect only the glasses to other devices.
The android box cannot be connected to other devices for a video feed.
The only other option is cast from the
SC to the
BT-300 android box using wi-fi
If you have a
SC, you need to get the BT-35e setup