The ME33 is a powerful, omni-directional microphone that is purpose-built to record voices from a distance - even in the largest conference rooms. Combined with an Olympus professional voice recorder*, it consistently produces audio files in crystal-clear sound quality by automatically cutting extremely high- and low-frequency sounds.It also gives you scalable recording power: By connecting up multiple ME33 microphones** using the bundled connector, it is also possible to produce a stereo sound version (with six units) or a monoaural version (with three units) of whatever you wish to record.*Olympus Voice Recorder not included.** Please note: ME33 microphone is sold individually.