SoundStation Premier sets a new standard in full-duplex audioconferencing quality. Incorporating Polycom's revolutionary echo cancellation and noise reduction technology, SoundStation Premier virtually eliminates echoes and reverberation. In addition, the exceptionally sensitive hypercardioid microphones and intelligent microphone mixing minimizes background noise, allowing you to effectively zero in on meeting participants as they are speaking, even in a room full of people. Premier's automatic gain control lets people move about at will, without worrying about being heard. Also the system's neodymium speaker provides clear, high fidelity sound with enough volume to fill almost any size room.