Cell Phone Anti-tracking Anti-spying GPS RFID Signal Blocker Faraday Cage Bag (Cell Phone Blocker) The MobileSec Cell Phone Blocker is the ONLY blocker that does not kill the battery (forcing you to replace your expensive phone). This 2-bag set can stop hackers from getting to your bank card or phone. Stop hacking /tracking of your phone  set attenuates GPS, 4G, Bluetooth, WiFi, RFID. Also has a viewscreen. Can be separated and used as 2 separate EMP bags! Tested to Mil-Std 461 - RS-105. Attenuates EMF for those concerned with cell phone radiation - anything less than complete coverage (magnets, pendants, etc) is a verifiable scam. Set oversized to fit any regular phone (not phablets). Inner bag's inside dimensions approx 7.25" X 4.25". Can be combined with a 1-way pager to make you reachable but give you control of your location privacy. Don't Wait - Order Today and get it in 72 hours! Free Shipping - Full money-back guarantee