In the quest for the cleanest sound track possible, "HUSH" LAV will dramatically minimize clothing noise. If you're experiencing radio mic glitches due to high humidity or an actor with moisture on body or clothing, slip a "HUSH" LAV over the tip of the transmitter antenna to isolate it from the source of moisture, thereby reducing RF absorption, and increasing RF Range! Hush Lavs are precut and drilled lavalier mic quieting sleeves used for recording clean audio with radio lavalier mic's. Hush Lavs are available in white or black for wardrobe matching. They are designed for use with the Sanken COS-11 and Countryman B3 and B6 Lavalier Microphones.