Comment by justinjlynn

Yikes, please don't do or encourage using these in public - there are many accessibility devices (hearing aids, cochlear implants, etc.) which depend on MEMS microphones to function. You could inadvertently make the world much worse for people who already have a difficult time of things. Imagine carting a cellular and WiFi and bluetooth jammer around outside of a Faraday cage - it's insanely irresponsible and inconsiderate.