https://www.jammer-store.de/handy-tragbare-storsender.html
This 12 antenna high performance portable cell phone signal jammer, GPS jammer and WiFi blocker with LCD power indicator uses a longer 2.0dBi gain antenna, which may interfere with GSM 3G/UMTS 4G 5G GPS WLAN 315 433 868 LOJACK and other frequency bands, and each frequency band can be adjusted either On or Off, the function is very powerful; Use high-efficiency aluminum alloy radiator, an integrated triple fan, good heat dissipation effect; Built-in 7.4V/12000mAh rechargeable battery, Continuous operation for more than 2.5 hours.
https://www.jammer-store.de/12-antennen-2g-3g-4g-5g-handy-signal-storsender-wlan-signal-blocker-und-gps-jammer-mit-lcd-batterieanzeige.html