The ZOOM XYH-6 X/Y capsule adds two matched high-quality unidirectional microphones to your Q8 or H6. This kind of microphone is most sensitive to signal coming from directly in front, and less sensitive to signal coming from behind or from the sides; in technical terms, they are said to utilize a cardioid polar pattern. These mics have the largest diaphragm size (0.579" = 14.6mm) of any ever available on a portable recorder.
Playing back stereo X/Y tracks in mono results in a fuller sound than you would get with one microphone, but if mono compatibility is critical (for example, in television production), the Mid-Side (MS) mic technique can be a better choice.
The XYH-6 adjustable X/Y microphone capsule is compatible with the ZOOM H5 and H6 Handy Recorders, Q8 Handy Video Recorder, U-44 Handy Audio Interface, F4, F8 and F8n MultiTrack Field Recorders, as well as the ECM-3 and ECM-6 extension cables for ZOOM microphone capsules.