The meeting room is mouldy and can't be washed away. It needs to be replaced. I bought a Deli brand. I don't know the quality, but the price is not cheap. There is nothing wrong with the installation. If it is bad later, I will give it a follow-up review and give it a good comment
Very good projector electric screen, wired control, up key, stop key, down key.The top is a hook design.The power cord connector is on the right side of the screen slot.The lifting sound is quite low.Recommended purchase.