Cell Phone Anti-tracking Anti-spying GPS RFID Signal Blocker Faraday Cage Bag (Cell Phone Blocker)

This is the only blocker that does not kill your battery and blocks signal. Other blockers with weak velcro seals force the phone to boost signal strength - draining battery and potentially killing your phone's useful life (especially for phones with built-in batteries - iPhones)! Avoid getting a cheap blocker and being forced to replace your phone. Our premium blocker stops cell reception when used properly - It can even block reception at cell towers AT TIMES (cell towers are not all the same). You can even combine this with a 1-way pager to be instantly reachable but still control when you can be tracked. The main factors for our remarkable shielding are that we use 2 shielding layers (vs. 1 for competitor products) that are magnetically sealed and easy to open (vs. weak Velcro seals that deteriorate). Using Velcro or Ziploc seals is literally like building a hole into the bag - it is no wonder those products do not function when under scrutiny! Buy the best. Our signal blocking bags are tested at a cell phone tower during off-peak cell hours - however, due to cell tower fluctuations, we can only guarantee blocking 125 feet from the tower (practically speaking, reception should be blocked most of the time even at the tower). Our product blocks reception better than any competitors. This matters because if you drive on a highway, you will pass cell towers at distances where signal may burn through competitor bags and allow tracking! Our product is the strongest cell phone blocker available. To boost the effectiveness even further, it is recommended that within 50 feet of a tower, a vertical orientation should be used for another 15 dBm of attenuation. These products are NOT, however, designed to stop other devices such as walkie-talkies, AM/FM radios, etc - we designed our bags to work all the time for cell phones only. It is perfect for both law enforcement and military usage.