Is Cell Phone Jammer harmful to the human body and cell phone?

Please do not need to worry about it. The intensity of electromagnetic signal sent by Cell Phone Jammer is in compliance with the national standard of environmental electromagnetic wave health. The signal sent by Cell Phone Jammer is relatively small and no harmful to human body according to the testing result.

Meanwhile, this device just damages the receiving condition to the cell phone and makes the normal connection between cell phone and base station impossible. Therefore, no damage will occur on cell phone itself. Is there any difference of distance between using Cell Phone Jammer indoor and outdoor?

Yes. Generally speaking, outdoor signal is bigger than the indoor signal. Thereby, the shielding effect is worse in outdoor.

Strictly speaking, whether using indoor or outdoor, the effective distance of interference is related to the surrounding around, for example the distance between different base stations, positions of installation etc. Is the Cell Phone Jammer has the same ... more.

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