When the signal area is not required, the multi-band mobile phone signal jammer can isolate the specified unnecessary frequency band. Selecting frequency is one of the multi-function signal blocking units, which has a compact structure and a complex combination of functions.Powerful jammers have a wide range of frequencies, including CDMA/GSM, DCS, 3G, 4G LTE, 4G Wimax, Wifi. According to the signal strength of a given area, its interference range can also reach 20m. Within this range, you can disable all wireless connections to 2G, 3G, 4G or Wifi networks at the same time by simply turning on the jammer. Compared with other Wi-Fi signal jammers, the powerful 4W optional portable 2G 3G 4G phone jammer. All WiFI signal jammers (2.4G, 5.8G) have more enhanced functions. The device not only blocked the 2.4G frequency, but also blocked the 5.8G frequency. In other words, the blocking device can cover all Wi-Fi signals. Moreover, the jammer is an optional unit. In other words, the user can choose to allow operation of one or several frequency bands. Adjusting the on or off of any frequency band will not cause any interference to the operation of other frequency bands.The jammer is portable and easy to charge, so it can be used flexibly. It can be used in conference rooms, meeting rooms, trains, buses and other places you need, and can be powered by a universal AC adapter or a 4700mA/h rechargeable battery. The carefully designed cooling system will further ensure your long service time.
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