Hello! Excuse me, Daxian, I saw this thing under the TV in the hotel. What is this?

This is the remote control receiving window of the set-top box, so don't worry too much.

This is because in order to reduce costs or reuse old TV sets, hotels have to install TV network set-top boxes, which are usually hidden behind TV sets or in cabinets. To solve the problem of remote control, external sensors have to appear.

Don't worry, you go and find out if this is from the set-top box.