When a room grows, audio coverage has to grow with it. The Poly Trio 8300/8800 Expansion Mic is built to extend speech pickup for conference spaces that need more reach than the main unit alone can provide. It helps keep voices clear for participants seated farther from the base system, supporting better intelligibility in larger huddle rooms, conference rooms, and executive spaces. For IT and collaboration teams, this is a practical way to improve room performance without redesigning the entire audio setup. Adding an expansion microphone can help reduce the need for speakers to lean forward or repeat comments, which keeps meetings moving and makes remote participants feel more present. It also supports a cleaner table layout by placing pickup where people actually sit. This accessory is especially valuable in premium deployments where the room experience reflects the organization itself. Paired with Poly Trio 8300 or 8800 systems, it helps create a more complete conferencing environment with better coverage and a more polished user experience.