6 Avaya B100 Series Expansion Microphones + REF Polycom SoundStation IP 5000 | eBay
POLYCOM Expansion Microphones (2200-16155-001) for SoundStation2 - Pack of 2 610807038283 | eBay
Polycom Soundstation 2W with Mics 2200-07800-160 with 2200-07840-001 (2200-07800-002) | New
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 SoundStation IP 7000 Expansion Microphones, 2200-40040-001
Expansion Microphone Set for Polycom SoundStation VTX 1000/IP 6000 - 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