This is J&M's outstanding ambient noise cancelling, wind blocking, Integrated High Output AeroMike III miniature boom microphone for superior performance on the Harley audio systems component assembly in the short length - ( 6 3/4" ) 
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.