Voice Biometrics use a person’s voice to verify their identity. (Like a fingerprint but using your voice.) Marketers use them to hyperpersonalize user interactions/journeys.
Many other companies use them for authentication and security. Voice Biometrics are used in all sorts of telephone and internet transactions; banking; healthcare, document processing (audio signatures for digital documents), law enforcement, education, and more.
Catalogers and other offline marketers have many advantages when it comes to E-Commerce. 
