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The product you are viewing is the 70W High Power Cell Phone Jammer for 4G LTE with Omni-directional Antenna. It can not only block the signals of 3G, CDMA, GSM, DCS and PCS, but also can block the signal of 4g LTE.In addition, it has an omnidirectional antenna, so it can block signals in all directions, and the interference distance of the antenna can reach 100 meters. And has a specially designed automatic power switching power supply, each frequency band can choose the output power, and adjustable. In addition, all TX frequencies only cover the downlink and are particularly good at blocking 3G signals.By using the AC adapter, it can be turned off even throughout the year. This high-quality jammer can be used in prisons, guardrooms, conference rooms, libraries, theaters, classrooms, and other places to help other places create a quiet environment or prevent important information from leaking through mobile phones.Be attracted? If you want to know more about this information, please contact us, and then you will get this information. If you only want to add one to the shopping cart, we will definitely provide you with products of high quality and reasonable price.

smart call blocker phones

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