Cell phone signals are easily interfered. Next, I will show you the killers of cell phone signals in daily life.

Mobile phone jammers can be roughly divided into three grades according to the power size. The first grade is the low-power type, which means that the transmit power of each shielding module is below 2-3W. The second gear is the medium power type, which means that the transmit po

In a project where a customer consults a fleet escort, from the perspective of saving project investment costs, is it only necessary to configure a

Hi! There are many types of communications nowadays except for GSM and CDMA cell phones like 3G, 4G phones, satellite phones etc. Can I block their signals?

The misunderstanding of this product by people who do not understand radio-controlled clocks often lies in the word "radio wave". Either they literally understand that radio-controlled clocks rely on receiving external radio waves to achieve timekeeping, or they deduce

I saw an interview on the street before asking: I'll give you 10,000 yuan and let you not use mobile phones for a month. Are you willing?

During the installation and commissioning of the

Generally speaking, the minimum range of signal jammers is tens of meters. As long as there are enough jammers, the maximum is unlimited. Otherwise, how can the prison achieve all signal shielding.

This is a mini hidden jammer. It has many advantages: