14 Band Cell Phone Signal Blocker Jammer

https://www.jammermfg.com/cell-phone-jammers.html.
Newly designed 14-band mobile phone jamming device, not only suitable for all GSM/CDMA/3G/4G signal interference, but also all suitable for radio signal interference such as remote control, Lojack, UHF/VHF, etc. Up to 14 different frequencies can be interfered in the range of up to 40M, and the practicability is very wide. It can be used in various indoor environments, such as conference rooms, laboratories, libraries, examination rooms, etc.
This desktop Remote Control RF jammer can also control each frequency band through the power adjustment switch, you can selectively turn on or off the frequency you want to interfere, whether it is used to protect your privacy or security, this fixed 14 antenna UHF jammer device is definitely the best choice.
https://www.jammermfg.com/14-bands-newly-designed-desktop-high-power-mobile-phone-jamming-device.html

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