The range of mobile jammers is very important
The results of the exam should be fair to all those who take the exam. In fact, in the past period of time, it is not easy to ensure this situation, because more and more people use mobile phones to forward responses. Not only for others, but now to prevent this situation, cell phone jammer seem to be the best choice to block cell phone signals. Now, the same is true for Scrambler high-quality phones that can detect cell phone signals.
How to choose a mobile phone signal jammer?
1. Make sure you know the frequency of the network. In Africa, Europe, the Middle East and Asia, most regions use the 900 MHz and 1800 MHz frequency bands.
2. Make sure you understand the local communication service provider. In France, the largest providers are 3G, 4G, CDMA and GSM. Before buying a phone signal jammer, you should check it on the Internet. The signal phone jammer can provide you with complete information about the Verizon frequency in your area.
3. Determine the required interference range and application purpose. For smaller areas (such as classrooms), a small and movable area is sufficient. However, if you want to use it in a theater center that can accommodate 10,000 seats, you need to purchase a large-capacity telephone signal jammer with a large interference range.