See https://www.mattblaze.org/blog/faraday/ https://www.mattblaze.org/blog/faraday/: > At least in the frequency ranges I tested, two commercial Faraday pouche

See https://www.mattblaze.org/blog/faraday/ https://www.mattblaze.org/blog/faraday/: > At least in the frequency ranges I tested, two commercial Faraday pouches (the EDEC OffGrid and Mission Darkness Window pouches) yielded excellent performance sufficient to provide assurance of signal isolation under most real-world circumstances.