As the number of days for the college entrance examination is decreasing every day, many schools have been busy recently, and they have been preparing materials and machines for the examination room. This allows candidates to take the exam in a stable and orderly environment. This is also the responsibility of the school. Therefore, recently we can see that a machine has been installed in the examination room. This is a test signal…

Installing "cell phone jammer" in classrooms is a costly and unpleasant thing. The leaders and teachers of Shishi No. 3 High School will not be unaware of this. They decided to overcome the trouble and implement the installation in the high school. Through this action, what we see is the school's heavy responsibility to students.

With the development of the market economy and the progress of science…

Installing "cell phone jammer" in classrooms is a costly and unpleasant thing. The leaders and teachers of Shishi No. 3 High School will not be unaware of this. They decided to overcome the trouble and implement the installation in the high school. Through this action, what we see is the school's heavy responsibility to students.

With the development of the market economy and the progress of science…

Many places use GPS signal jammer phone jammer

GPS jammer is specially designed based on satellite positioning (cars, mobile phone positions, Google network positioning, etc.), which brings inconvenience to certain confidential units and individuals. The jammer is aimed at all the characteristics of the GPS satellite positioning system. When using this product in an area of ​​2-15 meters, it can…