ClearOne 910-158-500-00 Wired MAXAttach Expandable Tabletop Conference Phones Additional Features: Superior Audio Performance - Distributed Echo Cancellation effectively eliminates echo - Noise cancellation removes background noises from fans or HVAC systems - Full-duplex sound enables participants to speak and listen at the same time without cutting in and out - Automatic level controls keep participants’ audio balanced and consistent - First-mic priority eliminates hollow “tunnel� sound by activating only the microphone closest to the person speaking - Three microphones in each phone unit provide 360° audio pickup Expandability - Comes with two phone units and a single base unit for medium conference rooms; also available in 3-phone and 4-phone kits - Link up to four complete phones, not just microphones, for expanded coverage with MAX EX Expansion Kits - Divide MAXAttach into multiple phone systems for use in separate rooms with MAX E...