The black B2D Directional Lavalier Microphone from Countryman is configured for use with the Sony transmitter. It can be used for miking news anchors, actors in a film or theater show, or lecturers in a school setting or house of worship. Featuring a hypercardioid pattern, the B2D rejects surrounding noise with a six to ten decibel reduction greater than an omnidirectional pattern. This results in decreased feedback, ambient noise, and phase cancellation when using multiple microphones. The B2D includes a detachable 3.5mm locking plug.