- Konftel 250 conference phone- OmniSound 2.0 - sensational sound- Full duplex eliminates talker echo and allows two-way conversation- Noise reduction technology to reduce the background noise- A highly-sensitive 360-degree microphone captures the voices of all the speakers present to provide even sound distribution in the room- Three loudspeakers for enhanced sound diffusion in the room- Expansion microphone capabilities- An equalizerenables you to adjust the soundKO910101065