With the rapid development of mobile communication technology, in the era of mobile Internet, mobile communication tools such as smartphones and tablets have become indispensable and important tools in people's daily work and life. Problems, such as cell phone ringing during the meeting disrupting the meeting order, students playing with cell phones during class, leaking important meeting information in advance, etc., how to regulate the use of mobile phones in schools, government departments, military and other places has become an important issue.

In the era of mobile Internet, smart phones have become an indispensable tool for people's work and life. Almost everyone has one. The use of smart phones has indeed brought great convenience to people's lives, but it has also brought great convenience to many places such as scientific research institutes, Banknote printing factories have caused adverse effects. In particular, cell phones such as prisons and detention centers have become the number one threat in the restricted area. Some criminals use illegally obtained cell phones to make calls, send and receive text messages, obtain external information, and even form gangs to escape prisons in the restricted area. The management of these places requires the shielding of mobile phone signals.

The digital desktop wireless signal blocker launched by the company can block the illegal use of mobile phones in the coverage area by blocking the downlink signal of mobile phones. 2G&3G&4G&5G mobile communication services of various operators, including voice, data, SMS and other functions.