Build Your Own Cell Phone Scrambler
Many people do not understand the difference between the three methods of Bluetooth, Wi-Fi and mobile data. It seems that they are wireless communication technologies. In fact, the main difference between them lies in the frequency band. In mobile communication technology, 2G mainly works in the 900-1700MHz frequency band, 3G works in the 1900-2100MHz frequency band, 4G works in the 2300-2500MHz frequency band, and 5G works in the 3400-3600MHz frequency band. Bluetooth and WiFi work at 2.4GHz. In this way, the R&D engineers of Dazhan Electronics can accurately identify the communication frequency band and develop the Build Your Own Cell Phone Scrambler of the same frequency band, so as to achieve the goal of completely shielding the wireless signal of the mobile phone. cell phone jammer
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N8P Portable 3G 4G GPS WiFi Lojack Cell Phone Jammer
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Mini Type Portable Signal Blocker GSM 3G WiFi GPS Device
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