Portable 12-band cellphone jammer

The P12H mobile phone signal jammer is small in size, but it can block 12 frequency bands. Its "fire range" can reach 30 meters, within this range, it is the master of the signal! The suppression frequency option allows you to choose which signals to block according to different situations.

https://www.jammermfg.com/P12H-professional-portable-5G-mobile-cell-jammer-device.html