Block Numbers On Samsung Galaxy J3 Cell Phone Takes Up Almost No Space

Mobile phone signal jammers in the exam room are often seen in places like the exam room. Many people don't know what this type of mobile phone signal jammer is in the exam room. Some people even enter the exam room with luck or cheat. Conclusion was caught. A lot of people think this thing looks like a router, maybe just hidden. It's actually a wrong idea. Exam room Block Numbers On Samsung Gakaxy J3 Cell Phone Although it looks a bit similar to a router, it is not a router. It is an instrument that blocks the communication between the mobile phone and the signal communication base station. Now, as long as the large and medium-sized examination rooms have this equipment. Even many colleges now have such test rooms installed in every classroom cell phone jammer . Such a signal jammer is not large and does not take up a lot of space. Moreover, the case is all made of metal, so it can be well maintained, and the key is to be waterproof.

When the rechargeable battery of the mobile phone is running and the ringing comes, it can cause sufficient kinetic energy to cause electric sparks caused by mild sparks, which is likely to cause a fire accident. Relevant departments such as crude oil, chemical plants, and safety have clearly stipulated that the use of mobile phones in oil depots is strictly prohibited. It has been a long time since the promulgation, but the current implementation is not ideal. The facilities of the oil depot are controlled by computers. The mobile phone data signal will affect the routine work of the facility. Block Numbers On Samsung Gakaxy J3 Cell Phone will cause the vehicle to be prohibited. More importantly, the mobile phone will spark during the whole process of dialing, which is very easy to cause fire accidents and lead to The oil depot exploded. With the increasing popularity of mobile phone applications, the number of mobile phone customers in China exceeded 900 million as early as two years ago. Today, the intelligent functions of mobile phones continue to expand. In addition to the main functions of making calls and short messages, they also have digital cameras. . Surveillance cameras, tape recorders, online and many other functions are used. The use of such smartphones greatly promotes the importance of human-to-human communication, facilitates the dissemination of information content, and enriches everyone's daily life.