Amzer Frequency Blocking Bag With Card Holder - Black
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A frequency blocking bag is usually using to block cell phone machines in special locations. After put a cell phone into the bag and seal the cover, the cell phone will loss signal seconds later and can not be reached any more. It will appear unavailable or network busy.
The frequency blocking bag could block radiations and degaussing.
The frequency blocking bag offers an ideal solution for pack small electronic gadgets which signal shield required.
Anti Spying, Anti Radiation, Anti Tracking, Anti-RFID.