According to a study by Washington University, adults are more likely to remember words when spoken by a familiar voice. (Yonon and Sommers, 2000). That can mean two things, use a celebrity voice or celebrity impression, and use it multiple times to build familiarity with your brand. Additionally, scientists from Boston University and UCLA have shown that combining both visual and auditory information in a message will produce a quicker learning of visual information. This will enable your audience to learn about your products or services at a faster pace than just reading the content.