Chelsea20072 @ 8.01.21, 7:54
They are closed with a special armored glass. Since long could not find a cover, a well-protecting chamber. Although honestly, I did not see their "eyes" there.
Apparently, the Chinese do not know about them for the same reason :) Although you have a device on your hands ... I understand you, this is your device and once you like a user suits what questions may be.
P.S. Even in my photo they can be seen, but the goal was not asked. Do you have a device on your hands Why do you need a photo from a presentation? (Rhetoric)