Citizen Mr. Yang recently reported that the signal shielding device in the Shanghai Symphony Orchestra Concert Hall at No. 1380 Fuxing Middle Road, Xuhui District cannot shield 4G and CDMA signals, but can only shield 3G and GSM signals. Turn off the mobile phone, if there is a c

The police usually use some police jammers to cooperate with the task of handling some illegal assemblies, mass gatherings, temporary communication control, and arresting criminal suspects. Because some places of use are different and the strength of the wireless signal at the mi

Anyone can see a variety of shields on dojammers.com, and some savvy friends may have discovered that there are two main categories of very different shapes. Yes, depending on the shape and method of installation, it can be divided into two broad categories: the first is the port

Standard jammers for vehicles are usually installed in the cab by connecting them to the car's electrical system. Their blocking range is a few meters. But there are other options for such devices, which block not only GPS signals in the car, but also external signals.

If you're concerned about your privacy or location tracking, there may be legal and ethical ways to address these concerns. You may consult a legal professional or privacy expert to learn more about your options. GPS jammer is definitely what you need.

After 5G signal coverage is over, you will be able to download files, play online games and pay online almost in the blink of an eye. Uploading something to the cloud will be as fast as storing files locally. New networks will also be crucial to the success of smart homes and sel

So what kind of place is suitable for high-power shielding system? What are the main components of the

Protecting privacy and security has always been a topic of debate for us. Friends who often travel to hotels, homestays, and rented houses should always raise their safety awareness and see if they can hide the small shots.

The sampling signal generated by the signal generator passes through the inverter, enters the oscillator and modulates it to the working frequency band of mobile communications, and then is amplified by the power amplifier and the voltage regulator tube controls the power. The am

Many friends are curious about whether the mobile phone signal jammer will cause damage to the mobile phone.