We used to talk face to face when we were together. Now we look down at the screen and ignore the friends at hand. A variety of social software is devouring our lives. At no time will you forget to take photos every day, upload to Facebook or follow other people's activities. Of course, it is also common for students to call in the classroom, yell at the restaurant, and ring in the lecture hall and church. There is no doubt that most offices need Internet access, but what about mobile phones? According to some studies, 50% of managers find that using a mobile phone in the workplace is not a good thing. No matter what you are doing, using a mobile phone in the workplace will distract you. Therefore, signal jammer can be used to interfere with the signal to improve employee productivity.
