GSM Jammer for Cell Phone Signal Blocking

As an important component of early cellular communication technology, GSM networks have long been used in mobile phone communications, basic mobile connections, and some wireless devices, making GSM frequency control an important part of cellular signal blocker applications.

GSM jammers are developed around these specific frequency ranges, allowing different models to focus on GSM signal environments with varying coverage requirements and technical configurations.


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Important things

1.Please install the antenna before using the signal jammers

2.Most Portable cell phone jammers have dip switches on the side. After turning on the main power switch, activate the dip switch—the red or green light will indicate it's on. Each switch controls a specific signal (Refer to the frequency table on the packaging for details).

3.Avoid using the jammer while charging.

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