Nowadays, people cannot do without mobile phones. People always put their hands on their phones all day long, but some places will block the phone signal. Next, greatjammer will tell you what the cell phone jammer is for and how to use it?

Telephone signal jammers are mainly used in places where the use of mobile phones is prohibited, such as examination rooms, schools, gas stations, churches,…

Techniques that deliberately interfere with electromagnetic frequencies (also known as interference) have been implemented in various devices, which are gradually provided to individuals and organizations. The interference is becoming smaller, more convenient, easier to use and cheaper, although in fact in most countries in the world, the interferencer is illegal. Although certain interferencers will block communication without differentials, there are several dedicated devices that are…

A cell phone jammer is a jamming transmitter that emits a weak radio signal to separate the connection between the cell phone and the radio base station. The interference effects can be digitally controlled to create quiet areas in restricted places. HandyBlocker is especially suitable for administrative offices, meeting rooms, conference centers, corporate headquarters, libraries, cinemas, places of…

Are jammers harmful to people or cell phones? The signal jamming device sends out electromagnetic signals. This type of jamming device has passed microwave radiation testing and certification. This radiation intensity is very weak and does not harm the human body. The cell phone jammer only blocks the forwarding signal from the phone, so the phone itself is not damaged and a connection to the base station…