cell phone jammer will be on and then the cell phone will display no signal

Shanghai Concert Hall Shanghai Concert Hall is the oldest existing Chinese architects from the European classical style music building, the Shanghai Concert Hall’s acoustics class, for all the musicians who performed in this praiseworthy, than ten years to become “Spring of Shanghai” host to the festival is playing classical music appreciation and Shanghai’s first choice. Shanghai Concert Hall auditorium, 1243 total, frame the stage 8.35 m deep, 16 meters wide, use an area of about 100 square meters.The power supply indication light of    cell phone jammer will be on and then the cell phone will display no signal. The building is rare in traditional European style, Shanghai, entered the lounge, the eye is sixteen encircle the ocher marble columns and grace. Auditorium of the composition clearly defined, complex and messy, and rich level changes, dignified and elegant color, the natural sound of the good, get a large number of foreign architecture experts and artists agree.
The risks can be controlled, acceptable time, people will not hesitate to accept the new product, which is the cause of human society can progress, if blindly obsessed with absolute security, then all of human society and the invention creation will be stifled. can have both fish and bear’s paw as another product of the human “cell phone signal jammers”, which covered cell phone signals, ensuring information security, will certainly bring some negative effects. However, We look at the issue should see the principal contradiction, just like we did not because vegetable knife to cut your hands will no longer use a kitchen knife, we will not because the “cell phone jammer information” may have adverse radiation on the human body rejected the “mobile phone signal jammers.
XVI prison sixteen Baicheng, Jilin Province, Jilin Baicheng Baicheng City, Jilin Province Prison prison several times in recent years, installation of cell phone jammers, both within each installation supervisor can not effectively shielded and outside interference is very serious, especially the four km range of the very strong mobile signal interference. The actual on-site in our survey the environment, the carefully designed for the white city prison, a cell phone shielding system tailored program to achieve a seamless monitoring point within the mask tight, imprisonment without interference effects, solve the white city prison phone risks, access to white city jail all the leaders alike.