This product is a camera detector that accurately captures hidden cameras and prevents intruders from taking candid shots. When users go out to stay in a hotel, they can quickly scan and check whether there are hidden cameras in the room, oval lenses and the way the product is scanned horizontally is more in line with human eye habits. The product has a built-in pulse vibration sensor, and the product is hung on the door handle of the hotel. When the door handle is turned at night, the product will automatically sound a buzzer alarm. Very good protection of the user's privacy and personal safety when going out. And the product volume is very small and easy to carry.