These days, it's almost impossible to watch a movie or bite something in a movie theater without being disturbed by a cell phone ringtone. Do you know the fact that mobile phones are not allowed in conference rooms, auditoriums, courts, libraries, test rooms, schools, cinemas, theaters, hospitals, mobile phones, etc.? Avoid talking loudly or texting even on some very private occasions. Because noise can be annoying, and cell phone signals can cause interference in some cases. signal jammer are increasingly used in public places. Japan allows public places such as theaters and concert halls to interfere with the installation of mobile phone devices whenever a license issued by the government is obtained. Last week, the French Minister of Industry approved a decision to allow installations in cinemas, concert halls and theaters, and emergency calls can be made as long as regulations are in place.
