The black Countryman B2D Directional Lavalier with Fixed SL Connector for Shure Wireless Transmitters features a lightweight 0.18-ounce body that was designed to be discreetly mounted. It is set to Countryman's Gray Band sensitivity for chest miking. The B2D can be used for miking news anchors, actors in a film or theater setting, or lecturers in a school setting or house of worship.