How to use a mobile phone to see if there is a camera in the hotel?

How to check whether the hotel has a camera with a mobile phone;

1. Turn off the lights in the room, draw the curtains, and leave the room in a dark state without any light.

2. Then turn on the camera function of the mobile phone, walk around the room and check the dead corner of the room, ceiling, TV, air conditioner and other places where pinhole cameras may be installed.

If there is a pinhole camera, you will see a red dot on your mobile phone.

Camera or webcam, also known as computer camera, computer eye, electronic eye, etc. , a video input device, is widely used in video conferencing, telemedicine and real-time monitoring. Ordinary people can also have video and audio conversations and communicate with each other on the Internet through the camera.

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