1.Dual Mobile Phone Live Streaming Capability: This sound card is designed for seamless dual mobile phone live streaming, making it an essential tool for content creators and broadcasters. Enjoy the flexibility to connect two devices simultaneously for enhanced audience engagement. 2.Built-In High-Capacity Battery: Never miss a moment during your outdoor live streams with the sound card's large capacity built-in battery. This powerful battery ensures your devices stay charged, allowing for broadcasting on the go. Stream confidently without the fear of running out of power mid-session. 3.Versatile Sound Effect Options: Elevate your broadcasts with 6 customizable sound effects and a variety of ambient sounds, specifically tailored for different scenarios. Whether you're entertaining an audience or providing commentary, these sound effects add a professional touch to your streams. 4.Unique Voice Modulation Features: Explore your creativity with multiple sound modes including reverb, voice change, and electronic sound effects. These features can be combined for an even wider array of audio possibilities, enabling you to create unique soundscapes.