This product is either discontinued or we cannot get that from suppliers.
OLYMPUS Compact Zoom ME34, Frequency Response 70 to 15,000 Hz, Plug 3.5 mm mini-jack, Plug-in Power System 2 to 10 V, Cable Length 3.3' (1.0 m).
The directional design of the ME34 Compact Zoom Microphone from Olympus limits interference from nearby sound sources. The microphone is useful for recording a particular voice or signal that would otherwise be obscured or overpowered by other sources.