Recently, our school will invite famous people to give a speech. But I am worried that students use mobile phones during the lecture. Are there any mobile interference devices that can block the use of mobile phones on a large scale.
Jammer-MartMarch 2020
If you need this kind of high-power signal jammer with a strong interference range, you can buy it on the online jammer-mart.com store, and choose a multi-band desktop desktop jammer. The interference range of desktop jammers is generally much larger than that of portable models. Your needs.
If you need this kind of high-power signal jammer with a strong interference range, you can buy it on the online jammer-mart.com store, and choose a multi-band desktop desktop jammer. The interference range of desktop jammers is generally much larger than that of portable models. Your needs.