In the past few years, various types of mobile phone signal shielding devices have emerged in an endless stream, and we are dizzy and dazzling, but in fact not all products are suitable for us to use, some products are common, Therefore, it is not suitable for us to apply to other categories. There is a very special kind of shielding device, which is also presented in front of us. Its name is called mobile wireless signal shielding device. So what kind of advantages does this kind of product have? When we use the cell phone signal blocker, you will find that no matter where we are, we only need to be able to turn such a switch on and off, then everyone has no way to search our wireless signal, in other words The effect of household products is more obvious than ordinary public goods. In such an environment, we can always screen out all the signals easily, but if we use a common shielding device, it may show shielding effect. Unstable problems, so we need to understand the detailed application results.