If you're planning on doing any international travel, then you might be wondering if you should get an RFID wallet. Here's a look at what RFID is and whether or not you need an RFID wallet to stay safe while traveling. RFID stands for radio frequency identification. It's a technology that's used in many different ways, but it's most commonly used in contactless payment systems like credit cards and mobile phones. When you use your credit card or phone to pay for something, the RFID chip inside of it emits a signal that can be read by special machines. This makes it very convenient - you don't have to swipe or enter a PIN number, and the transaction can happen very quickly.