"Radio Wave Jammer" is a device that blocks radio waves from cell phones and Wi-Fi to temporarily turn them off. In some theaters and halls it can be installed with a license from a wireless station to prevent cell phones and WiFi. Let's take a closer look at the "wifi jammer", which can be called an extended form and can only disconnect the target router.
Make sure that Wi-Fi Jammer is really usable
It is also true that there is a voice that the so-called radio wave jammer is not easy to use. This is because it affects any device that falls within the effective range of the radio jammer. For example, you cannot be skillful, e.g. B. "Only use cell phones and disconnect WiFi" or "Connect WiFi used by connected parties, but only disconnect free WiFi".
Across the sea, however, next generation jammers have been developed with such flexibility. It looks like an ordinary mobile WiFi router, but it is a communication suppression device that can only disconnect the target WiFi router.
The "ESP8266" Wi-Fi module is installed. When connected to a mobile battery, it is structurally a mobile WiFi router.
I tried to check that the Wi-Fi jammer could really be used overseas. To use it, first connect the Wi-Fi jammer and smartphone to Wi-Fi. Since the Wi-Fi jammer itself is an access point, set the connection destination to "pwned".