Product Description: The MAX EX conference phone provides premium, full-duplex audio with unmatched expansion capabilities. Integrating ClearOne抯 industry-leading professional audio technology and advanced processing, MAX?EX brings you unbelievable clarity, unique expandability ?and incredible ease of use. MAX EX is the perfect solution for small conference rooms as a single unit, and also covers medium to large conference rooms as an expanded system. Link up to four phone units complete with microphones, loudspeakers and controls for an even distribution of sound. With MAX EX in meetings, not only can discussions flow more freely, so can productivity. Features: Easy set up and operation ?just plug the base station into a power outlet and analog telephone jack Automatic Level Control ?automatically adjusts microphone volume levels based on how loudly participants in the local room are talking to improve voice quality for far-end participants Automatic Gain Control ?automatically adjusts loudspeaker volume based on the incoming audio signal from the far end to provide clear, intelligible audio in the local room Max EX Suggested Usage * Small conference rooms ?up to 8 people * Executive offices * Home offices The Max EX can also be linked with as many as three additional MAX phones (MAX EX Expansion Kit) for use in larger conference rooms