GPSジャマー
https://www.perfectjammer.com/gps-blockers-jammers.html
無線LAN妨害装置
https://www.perfectjammer.com/wireless-wifi-bluetooth-jammers.html
信号妨害機
https://www.perfectjammer.com/
携帯電話妨害機
https://www.perfectjammer.com/all-cell-phone-jammers-blockers.html