Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
Logitech 989000171 Group Expansion Microphones for Video and Audio Conferencing for sale online | eBay
Poly Realpresence Room Mic Array Compatible with Group Series (2215-63885-001)
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 Trio Expansion Microphones for Trio 8300, 8500 & 8800
Expansion Microphone Set for Polycom SoundStation VTX 1000/IP 6000 - 323.tv
Expansion Microphone for Poly Studio & RP Debut – Global Communication
SoundStation Duo Expansion Microphone Price - Polycom Phones Accessories