Polycom RealPresence Trio 8800 With Expansion Mics - 323.tv
Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
Polycom Poly Studio and Real Presence Debut Expansion
Poly Wired Expansion Mic Array and 25' RJ11 Cable 2200-69631-001