Countryman B3W4FF05BSM B3 Omni-Directional Wireless Round Lavalier Microphone for Lectrosonics Transmitters (Black) B3 omnidirectional wireless round lavaliere microphone is ideal for theater, news anchors, interviews, lecturers, and general lavaliere applications Fits Lectrosonics transmitter models SM series, UMa series, LMa series and TA5F connector Highly resistant to moisture and perspiration for use in hair, on the body, or in bad weather Standard gain (no band) for most uses Available in black color