Expansion Microphones - Increase the audio coverage of your conference room by pairing the Expansion Microphone with your SoundStation conference phone. | Poly, formerly Plantronics & Polycom
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Amazon.com: Conference Speaker and Microphone, 360° Omnidirectional USB Speakerphone Microphone with USB Hub, Noise Reduction/Echo Cancellation Computer Microphone for 8-10 People Business Conference, Home Office : Electronics
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Portable USB Conference Microphone 360° Omnidirectional Condenser Mic with Mute and Control Function Noise Cancellation Plug and Play Compatible with Windows MacOS for Computer PC Laptop Vi - Walmart.com
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