A WiFi jammer is a device that uses wireless signal interference technology. Its main function is to interfere with or disrupt WiFi signals by emitting radio waves of a specific frequency, thus preventing surrounding WiFi networks from operating properly. It generally interferes with signal transmission in the 2.4 GHz and 5 GHz frequency bands (common frequency bands for WiFi networks), preventing connected devices from connecting normally to the Internet.

The principle of a WiFi jammer is similar to that of a cell phone signal jammer. It covers or suppresses the original WiFi signal by sending out a powerful interference signal of the same frequency as the WiFi signal, making it impossible for the device to communicate stably.

WiFi jammer applications and functions

1. Used for signal interference in specific locations
Exam or meeting: In certain environments requiring a high degree of confidentiality (such as examination rooms, conference rooms or research institutes), WiFi jammers can prevent wireless networks from leaking information or certain people from cheating on the network.
Sensitive locations: In sensitive locations such as governments, businesses and scientific research, WiFi jammers are used to prevent outsiders from stealing data over wireless networks.
2. Prevent network abuse
Corporate management: some companies or organizations may use WiFi jammers to prevent employees from accessing the network during working hours, in order to improve work efficiency.
School management: schools can use WiFi jammers to prevent students from using their phones or other devices to connect to WiFi during lessons.
3. Prevent unauthorized network behavior or data leakage
In some cases, WiFi jammers can be used to prevent unauthorized people from using wireless networks to carry out unauthorized activities. By interfering with WiFi signals, you can reduce the risk of your wireless network being exposed to external attacks.
4. Prevent certain devices from communicating
In some locations, you can protect privacy or security by preventing wireless cameras or other unauthorized devices from downloading data by interfering with Wi-Fi.