
Visa payWave works by using short range wireless technology, so the reader will pick up a signal from your card in less than a second when it's very close to it. You can use your card for payments of £10 or less, and as an extra security measure, your bank will set a limit to the number of Visa payWave transactions you can make before you use your PIN. So, for instance, if the limit is set at 5 transactions, on the sixth transactions, you'll be asked for your PIN. Then you'll have another 5 transactions before you're asked again.