Logitech Expansion Mic for MeetUp provides greater flexibility in huddle room configurations. MeetUps built-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. HEAR CLEARLY UP TO 4.2 METERS Because huddle rooms vary in size we created Expansion Mic to provide additional flexibility in different room configurations. Expansion Mic extends MeetUps microphone pickup range to 4.2 meters. EASILY MUTE CALLS A microphone mute button lets those at the far end of the table mute the entire speakerphone system. The indicator light shows when the microphone is muted when a call is active and when Bluetooth wireless pairing has begun.