The tech is extremely simple to use. A customer can create their biometric profile at a participating location by linking their palm and payment card to the service. To do this, All a customer has to do is hover their palm over a small infrared reader. The scanner takes a digital snapshot of the customerâs palm, then encrypts it for later matching. A biometric profile is created by establishing a consumer palm âsignature.â The user can then process payments using this biometric profile anywhere they are accepted.