Block EMF, stop phone tracking, and protect your privacy with a GoDark Faraday Bag for Cellphones that block all incoming and outgoing EMF signals between 200 MHz and 40 GHz, including GPS, 4G, 5G, Wi-Fi and Bluetooth. Each GoDark Bag is made with 2 layers of GoDark RF shielding fabric, which has been independently lab tested to provide an average of 105 dB of EMF signal attenuation and has passed the MIL-STD-188-125-2 standardized military test for High Altitude EMP shielding. GoDark bags were made for the elements with a very durable 600D Poly Outer Shell with a PU face coat and a TPU backing that is both water and puncture resistant. A thin inner padding and felt liner further protect the signal blocking material from being damaged with repeated use. GoDark Bags are the trusted choice among the privacy & health conscious, journalists, security professionals, law enforcement, military and preppers.