Conference microphone conference phone is a full-featured conference phone. Powered by the international advanced IV HD-voice processing technology, automatically adapting in 48KHz full-duplex echo cancellation and different voice bandwidth audio and video conferencing systems around the world it’s contributing in conference calls that sound as natural as being there. Any time there will be no noise at both sites or multi-parties. With highly stable and reliable acoustic performance, It creates a more realistic and joyful experience in conference phone calls for users. conference phone can make a video conferencing or net conferencing call by connecting to the hardware video conferencing terminal or computer via USB or analog audio interface. Meanwhile, it can also make a hands-free conference call with mobile phone via the line in/out interface. It can support USB communication and Line in/out communication at the same time. With mixing audio technology, you can easily hold a 3-way conference call such as Hardware video conference+ Web conference (laptop), Hardware video conference+ Mobile telephone conference, Web conference+ Mobile telephone conference. Conference microphone conference phone has 4 inner uni-directional microphones which can gather over 3m and inner high loudness rubidium boron rare earth speaker. This product is suitable for small and medium sized professional meeting rooms within 20 to 60 square meters.