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