After several weeks of speculation and leaked details, today Google officially unveiled its first big foray into mobile payments in Asia. The Android and search giant has launched Tez, a free mobile wallet in India that will let users link up their phones to their bank accounts to pay for goods securely in physical stores and online, and for person-to-person money transfers with a new twist: Audio QR, which uses ultrasonic sounds to let you exchange money, bypassing any need for NFC.
Tez is Google’s play to replace cash transactions and become a more central part of how people pay for things, using their mobile to do so. But it’s also a chance for the company to push out some new technologies — like audio QR (AQR), which lets users transfer money by letting their phones speak to each other with sounds — to see how it can make that process more frictionless, and therefore more attractive to use than cash itself. More on AQR below.