At first, most people were surprised because the last thing they expected was to have a signal jammer close to you. This is the main reason why these devices are so popular. They are still relatively new in the market, which means you can still use them as an unexpected measure. You will be surprised when people turn on the device.
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It is a handheld wireless signal jammer that can block various signals. In addition to shielding ordinary wifi wireless transmission, it can also block cell phone signals, CDMA, GSM, GPS and Lojack frequencies, with an interference radius of up to 30 meters. It is the most popular multi-frequency signal jamming device on the market.
