Olympus ME33 Boundary Microphone

The ME33 is a powerful, omni-directional microphone that is purpose-built to record voices from a distance – even in the largest
conference rooms. It consistently produces audio  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.