This is a PDF copy of the visual slideshow that accompanied Fred Ginsburg's presentations at NAB 2011. Audio Technica sponsored a series of free workshops every day of the conference. These graphics discuss outside-the-clothing as well as hidden-under-clothing techniques for mounting lavaliers.
The BP896 is truly one of the tiniest microphones available today in the (non-spyworld) open market. It is only one tenth of one inch in diameter at its thickest part! It compares in size to the older Countryman B6 lavalier, which is also one-tenth of one inch around.
Originally, the term "lavalier" referred only to the "neck-worn" or "body-worn" class of small microphones. These days, the working definition of lavalier has been extended to include virtually any miniature microphone small enough to be worn on the body and/or hidden in the set.