Which of the following bank has launched the QR Code Sound Box to provide instant voice-based payment alerts to merchant partners?

A) Punjab National Bank
B) IndusInd Bank
C) AU Small Finance Bank
D) Equitas Small Finance Bank

Explanation: The AU Small Finance Bank has announced the launch of a QR Code Sound Box, to provide instant voice-based payment alerts to merchant partners. It is a first-of-its-kind product launched by a bank. QR code sound box is a small and portable speaker, having a dedicated SIM slot for data connectivity, to give voice notification.