LIVE BROADCAST SOUND CARD: Professional reverb adjustment with knob design for fuller, more three-dimensional sound. Supports 12 types of warm-up sound effects, one-key mute, reverb adjustment, treble and bass adjustment, voice distortion, and unique sound effects. USB EXTERNAL SOUND CARD: Delivers clearer and more stable audio quality, enhancing the depth and spatial feel of vocals for a more rounded and three-dimensional live sound. Features beautiful backing vocals, multiple sound effects, and outstanding functions to optimize your voice. SMART DODGE: The smart dodge mode automatically lowers background music volume when the host speaks and raises it when they are silent. DOUBL E PORTS: The podcast mixer sound card features dual call ports for two people to live stream simultaneously and dual live ports for streaming to two platforms at once. INTERFACE RESOLUTION: When the sound card is connected, both the phone and sound card can be charged simultaneously, supporting long-duration live streaming. OTG lossless data live streaming eliminates the need for extra adapter cables.