The MT301 is the basic model of the Q3 series. The USB outlet allows you to connect to the computer for any VoIP sessions, such as Skype, Vidyo, etc. The Quattro3 (Q3) is a high-quality conference speakerphone that will turn any room into a professionally sounding conference room. It has an exceptionally large pickup and broadcasting range, yet is small in size and discrete in design. The Q3 utilizes multiple microphones, a uniquely designed speaker, and a powerful DSP to achieve commanding performance. The Q3 can easily be paired with an interface module to enable it to communicate with different types of infrastructures.