Poly Trio C60 IP Conference Phone (Polycom)- 323.tv | #2200-86240-025
Amazon.com: Poly Polycom Expansion Mic for RealPresence Debut (2200-69631-001) : Office Products
Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
Poly RealPresence Trio Expansion Microphones - Microphone (pack of 2) | Dell USA
Expansion Microphone Kit for Poly Trio 8300/8500/8800 (qty 2) – Global Communication
Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom