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https://www.jammermfg.com/cell-phone-jammers.html
Equipped with 4 advanced external omnidirectional antennas, this Top signal jammer can jam signals within a radius of 50-150m, and it is also one of the top indoor desktop jammer products in our store.
It is worth mentioning that you can also customize 4 frequencies in CDMA, GSM, PCS, 3G, 4G, WiFi, GPS L1 and other frequencies. Each frequency band/channel has its own independent adjustable switch, and the output power can be adjusted from the maximum Turn it to 0 (off), which means you can adjust your signal jamming range as needed. And each modular option is 100% safe VSWR overprotection (isolator). In addition, this mobile phone jammer has the most advanced heat dissipation system, and the surface temperature is lower than 45°C when working at room temperature, which can easily achieve the purpose of long-term stable operation of the device.
https://www.jammermfg.com/top-desktop-high-power-signal-jamming-device-with-4-external-omnidirectional-antennas.html
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