Short range signal jammer
A short range signal jammer is a device designed to jam or block wireless communication signals within a limited range, usually up to a few hundred feet. The radio frequency signals emitted by these devices can interfere with the wireless signals used by cell phones, Wi-Fi routers, GPS systems, and other wireless devices.
Short-range signal jammers can be used for a variety of purposes, including blocking unwanted signals in certain areas, preventing cell phones from ringing in certain areas, or preventing drones from flying in restricted airspace.
This is a portable 8-antenna wifi jammer that can span 30 meters. Interfering GSM WIFI-2.4G 3G (UMTS) 4G GPS DCS PCS signals, this is your best choice.
A new type of 8-band portable jammer. It has a larger interference range. It can be hung on the arm, using a separate control button, you can select the frequency band to interfere.