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How to block electronic signals?

Mobile phone signal shielding can only be used with mobile phone signal jammers, not electronic jammers.

The cell phone signal jammer is full-band. It can shield all the 2G 3G 4G signals, 2.4G WIFI signals and Bluetooth signals under all the three operators of China Mobile, China Unicom and China Telecom. Its principle is to use its own frequency. Interfering with the mobile phone receiving the frequency sent by the base station and wireless router, so that they cannot receive the normal signal, the frequency signal sent by the mobile phone signal jammer is regarded as the signal of the base station and the wireless router, so it cannot be used normally.

As long as the mobile phone is in the room where the shielding device is turned on, it is not possible to make and receive calls, send and receive text messages, and surf the Internet.

5-band adjustable desktop jammer for GSM 3G 4G WIFI GPS frequency

5 Bands desktop Jammer

White aluminum shell high-power desktop mobile phone shielding device, good heat dissipation, can work for a long time. Interfere with GSM, 3G, 4G. The best choice for home jammers.

$316.89$599.66

8 Bands High Power Portable multifunctional Cell Phone Jammer

8 Bands Jamming Device

This is a jammer that can be used outdoors for a long time. a large capacity battery of 8000 mah. With the extended antenna, a larger interference range than other 8-way handheld jammers.

$539.69$939.85

Multifunctional gsm 3G 4G 5G and WIFI cell phone jammer

5G cell phone signal Jammer

The high-power 30W jammer effectively shields 2G 3G 4G 5G mobile phone signals and WIFI signals, and has a wide coverage range of 100 to 200 square meters (-75 dBm).

$369.69$555.98

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