Theater House Electric 80-inch Projector Screen

Electric white screen with remote control and mounting hardware.
This is an 80-inch screen with a black mask.
It's a BDR1771BM from about 10 years ago.
It is not 4K compatible.
It is a high-definition matte screen.
However, I replaced it with a 4K compatible one, and honestly, there's not much difference even with 4K compatibility.

When it was installed, there was no option to shorten the power cord, so
the power cord has been shortened to 30cm.
It was not cut by an amateur but installed by a professional electrician, so it is not a shoddy job (in fact, there have been no problems so far).

The fabric has marks from the weight bar due to the weight of the bar.
You can see it on a pure white screen or a solid color sky, but
in most cases, with various colors mixed and people moving,
it is not noticeable.
(It may look like uneven color, but this is due to the limitations of the smartphone camera and is not actually present.)
I recently replaced this screen with a used one that was 2 years newer, and it already
had marks on it, so it's possible they all have them.

The remote control does not have batteries, so please insert two AAA batteries.
There is no instruction manual, but pressing the SET button three times allows you to set the position.