Um, what is the use of a shield that blocks signals from going to your cellphone? What is the value of a cellphone inside such a shield? You can never take it out of the shield, and you can never use it.
The value is anonymity with the option of being able to use it when you want. The true value is having a real "off" switch.
Despite the conspiracy theories, your phone already has an off switch.
Doesn't mean this isn't of use, or that I'm reaching for a conspiracy. But a faraday cage to prevent communication might come in handy every now and again.
Why would you arrive at such an absurd conclusion? The pouch provides control of when you are tracked.
It does no such thing. Your phone is completely traceable when on, and it's not one way, and the pouch does nothing because the phone can still record where you are and what you say when in there, and then transmit it later.