The hotel probably has a camera. Where should I check when staying in a hotel?

If you are worried that the hotel has a camera, it is probably a pinhole camera, because the room attendant checks it every day. It is usually hidden in sockets, walls, televisions, ceilings, bathrooms, sofas, mirrors, electric lights, storage boxes and other places.

Don't turn on the light before entering the house, observe where there are red or purple light-emitting points, and pay special attention to places with power supply.