The Keyless Go system is unfortunately still very easy to manipulate. 
That's why you absolutely need theft protection that guarantees you real security, other material bags the signals sometimes cannot be shielded 100%. 
To protect your Cellphone,  wireless key, Credit cards, NFC cards, etc.,  you need a RFID block faraday BIG case, we have designed series noble, handsome cases for you, which is worthy to house your valuable property.

Black PU White Stitch, RFID block fiber
Inside line with liner
Function: RFID block case

115x100x65mm

Packing individual paper box