This is J&M's outstanding ambient noise cancelling, wind blocking, Integrated AeroMike III miniature boom microphone component assembly in the long length - ( 10" ) 
It provides crystal clear voice transmissions that are ideal for intercom, CB, or cell phone communications, without the wind and ambient noise often experienced with lesser quality microphones. 
Included are 1 each of all three sizes of the foam windsocks, assembly nut and plastic installation tool.