The Countryman B3 omnidirectional wireless round lavaliere microphone is all-purpose, rugged, affordable lavaliere that's easy to hide in clothing, hair or props. Ideal for theater, news anchors, interviews, lecturers, churches, schools, and general lavaliere applications. Captures the highest-quality audio with excellent rejection of surrounding noise. Looks great when you want to see it, and hides easily when you don't. Highly resistant to moisture and perspiration for use in hair, on the body, or in bad weather. Protective cap is easily removed for cleaning or replacement when clogged with makeup. Supplied with set of two black and white tie clips, wind screen, three HF response control protective caps, and carrying case. The mic will connect to a wireless pack. Fits Sennheiser/Shure transmitters models SK-50, SK250, SK3063, SK5012, SK5212/all with Lemo 3 pin with UR1M respectively and Lemo 3 pin connector. Standard gain (no band) for most uses. Available in black color to blend with clothing or skin tones. Measures 2/9-inch diameter.