This part is a kind of semiconductor called BETA58A.

Function of this product has Microphone user guide.

Manufacturers : Shure

Image and pinout :

Some of the text within the PDF file :

Model BETA 58AR User Guide APPLICATION AND PLACEMENT The BETA 58A is designed for close-up vocals, and can be hand held or mounted on a stand. Some of the most common applications and placement techniques are listed in the following table. Keep in mind that microphone technique is largely a matter of personal tastethere is no one “correct” microphone position. SUGGESTED MICROPHONE PLACEMENT Lips less than 15 cm (6 in.) away or touching the windscreen, on axis to microphone. 15 to 60 cm (6 in. to 2 ft.) away from mouth, just above nose height. 20 to 60 cm (8 in. to 2 ft.) away from mouth, slightly off to one side. 90 cm to 1.8 m (3 to 6 ft.) away. TONE QUALITY Robust sound, emphasized bass, maximum isolation from other sources. Natural sound, reduced bass. Natur [ ... ]

BETA58A PDF Datasheet Download