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 External Microphone 2201-07155-601 SoundStation VTX1000 IP 6000 | eBay
Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
Expansion Microphone Set for Polycom SoundStation IP 4000 - 323.tv