Large Scale Jamming Device
Jammers has 40-50 meters jamming distance usually used in small buildings or small rooms, common use is a business meeting room or a government meeting room, can guarantee the safety of conversation and the quiet of the meeting. Of course, some education organizations will also purchase such products. More and more individual users are buying such devices. At the same time, this kind of equipment are cheap, easy to carry,Here are a few different cost-effective jammers for you to buy.
