Polycom Soundstation 2 Ex - Expandable Soundstation 2 with ports for 2 Expansion Mics:

The Polycom Soundstation 2 Ex is identical in features and superb voice quality renderings but has the added expandability for those large offices or conference centres. It comes with 2 ports for the connection of the Polycom Expansion Microphones extending the coverage area thus enabling the unit to be used in a larger conference room environments