Countryman B3W4FF05BSN B3 Omni-Directional Wireless Round Lavalier Microphone for Sony Transmitters (Black) B3 omnidirectional wireless round lavaliere microphone is ideal for theater, news anchors, interviews, lecturers, and general lavaliere applications Fits Sony transmitter models WRT-805, UWP series and 3.5-mm locking 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