The Yealink CPE90 is a CP Wired Expansion Mic which works as an audio input device for Yealink CP960 conferencephone. Up to two expansion microphones can be connected to Yealink CP960 IP conference phone, which extend therange by an additional 10ft/360° respectively. Advanced echo cancellation and noise suppression filter out unwantedsound, so all that remains is crystal-clear voice. The CPE90 is a clear-cut choice for organizations which enables optimalmicrophone placement and room coverage.• Optima HD voice• Full duplex technology• 10-foot (3-meter) 360° voice pickup• Echo cancellation• Capacitive mute touchpad with bicolor LED• Work with Yealink CP960 IP Conference