The Hide-a-mic COS11 is an innovative tool especially designed to easily hide a Sanken COS11 lavalier microphone under any piece of clothing. The set contains 4 different holders with each its own use. Hide-a-mic holders are very easy to apply. You just pick the right holder, put in place and you are ready to roll. You can choose the Bra-holder, Shirt holder, Tie-holder and T-shirt holder.