The Sanken COS-11D BP is a wired lav with an XLR connector.  The COS-11D is the industry wide standard in ultra-miniature lavalier microphones making it an ideal solution for professional theater, video recording, film and broadcast applications. This lavalier was designed to meet today's HD audio standards while providing greater immunity to RF interference. The COS-11D wiring incorporates exclusive design advances that deal with both digital and digital/analog hybrid RF wireless transmission. Sanken utilizes an exclusive vertical placement of the diaphragm for a much greater effective area within an extremely small casing. The COS-11D BP comes with a HC-11 tie clip, WS-11 metal windscreen, RM-11 rubber mount and case. Available in Black, Beige, Grey and White.