Original Logitech Expansion Mic For MEETUP WL 989-000405Logitech Expansion Mic for MeetUp provides greater flexibility in huddle room configurations.MeetUpsbuilt in beamforming mics are optimized for up to 2. 4 meters. To extend that range up to 4. 2 meters, add an Expansion Mic. So whether people are seated at a table, sitting against the wall, or standing, Expansion Mic for MeetUp means everyone will be heard.