Question: do faraday bags block gps?
Answer: PROTECT YOUR PRIVACY: The faraday bag protects chip technology "smart-cards" from hackers' RFID readers in the range of 10 kHz-30 GHz. ... FARADAY BAG KEY FOB: This cell phone faraday bag can block GPS and car-key signal to prevent tracking, protect your privacy, ensure your car's security system from getting hacked.