How to prevent the hotel room from having a camera?

You can check whether there is a camera through the mobile phone camera, infrared flashlight and flashlight. Take the mobile phone camera as an example. The operation method is as follows: 1. Turn off the lights and close the curtains. Make sure to check in absolute darkness. 2. Turn on the camera of the mobile phone and carefully scan every corner of the room, especially TV sets, routers, small holes in set-top boxes, smoke alarms, wall socket switches and other places where it is easy to hide the camera. If there is a pinhole camera, you will see a red dot on your mobile phone. Once the pinhole camera is found, you should immediately call the police and contact the relevant person in charge of the hotel. Infrared flashlight: use infrared flashlight to sweep every corner of the room. If there is a camera, the infrared flashlight will have a very obvious red reflection. Flashlight: Use a flashlight to check all exposed holes in the room. If you have a camera, you can see the reflector through a flashlight. To sum up, you can check whether there is a camera through the mobile phone camera, infrared flashlight and flashlight.