Pocket signals wlan killer is an wlan blocket that researchers have developed to shield WiFi signals, so that WiFi networks can be blocked in specific office or departmental areas, thus providing better WiFi security.
This kind of wifi jammer only blocks wlan signals of a specific frequency, and some full-power can selectively intercept mobile phones and radio broadcast signals. For some hospitals, hotels, theaters, etc., it can also be used to prevent guests from trying to use external free WiFi signals escape payment.
