How would you build an audio product for Facebook?

Focus on identifying the unique value proposition of an audio product within Facebook's ecosystem. Consider how it can enhance user engagement, foster community, or integrate with existing features like Stories, Groups, or Live. Discuss potential use cases, such as social listening or collaborative audio experiences, and think about the target audience. Address technical considerations, such as platform compatibility and user privacy, while also exploring monetization strategies. Finally, outline a phased approach for development and user testing to ensure the product aligns with user needs and company goals.