Polycom Trio Expansion Microphones for Trio 8300, 8500 & 8800
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 2200-40040-001 SoundStation IP 7000 Microphones
Polycom SoundStation Duo CX3000 External Microphones (2200-15855-001) – Atlas Phones
Amazon.com : Polycom Realpresence Trio 8800 External Microphones - Black (Pack of 2) : Office Products
2200-41220-002-Polycom 15' External Microphone Cables New - Telecomex
Polycom SoundStation 2W EX Expansion Mics (2200-07840-001) | Comtalk Inc.
Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom