Audio testimonials are recordings of people providing a positive comment or review about a product or service. These are usually recorded and used in marketing campaigns to demonstrate customer satisfaction and demonstrate the effectiveness of the product or service. Now, audio testimonials can be converted into Audio NFTs using Witlingo. Witlingo is one of the leading platforms when it comes to creating high-quality Audio NFTs for audio marketing as it provides users with a range of tools and features needed to produce unique digital assets which can be verified via blockchain technology.