Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
![Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products](https://m.media-amazon.com/images/I/6124XIomv1L.jpg)
Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products
![Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products](https://m.media-amazon.com/images/I/715E+2qAiBL.jpg)