“designed to reduce 99% harmful radiation when you carry your phone”
/s
Less crazy when people can open your car with your keys inside your house, because antenna and transmission technology has gotten so good. 
It you don’t have one of these, you can always throw your phone in a microwave. The last (or first) resort Faraday cage.
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Woot! $9.99
Warranty: 90 Day Woot Limited Warranty
Mothership $42.90
ASIN B0CNZYBSDQ
Warranty Description: 2 year manufacturer
My sarcasm was primarily directed towards the item’s claimed EMF-blocking capabilities.
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It does not block EMP
I don’t think that it claims to. It claims to block EMF, which is different than EMP.
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