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johanpoan

macrumors newbie
Original poster
Sep 23, 2014
5
0
Hi!

I was just wondering, here in Stockholm we have the local subway that uses keycard tickets control to go through the automatic doors. My question is, I am thinking of buying a iphone flip case and have my credit card and the keycard inside. Can the sensor waves in some way harm the phone?

I have heard people talking about it here being a problem (could be a myth). But I can't find anything on the web regarding this. Anyone got a clue?

Regards Johan
 
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