Mission Darkness™ NeoLok Window Faraday Bag for Tablets

I have several of the bags and love them, so I decided to buy 8 of them and give them out as Christmas presents and it was a very big sirprise and my family absolutely loved it. I would imagine they would purchase more on their own.

Does exactly as advertised

Usable - but not ideal

I have found that this bag has about a 75% success rate. That is to say that nearly 25% of the time signals still leak through. My testing was not in a laboratory but rather in actual practical applications. I have found that it is most effective in blocking GPS signals -- nearly 100%. But SMS messages (transmit and receive) still get through. So, as the title says, the product is usable -- certainly much better than nothing -- but it is not perfect.