If you are looking for a super simple test, leave your tap payment card in the money belt, and tap it over a tap payment terminal, such as the ones found at Starbucks or McDonalds. The signal will be blocked, and your information will not transmit.
It would have to be taken off.
The RFID blocking material in our neck stash block the frequencies typically found in payment, identification, and transit cards (13.56 MHz and above). They will only block key FOBs if they also work on these same frequencies. However, unlike payment and identification cards, key FOBs are much less standardized and can vary across a range of frequencies. Our neck stash is generally intended for use with credit cards and passports.
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