The B3 Omnidirectional Lavalier Microphone, with Pigtail Leads and (W4) Standard gain for most uses, is essential to any well-stocked pro audio toolkit: it captures the highest-quality audio available in a lavalier mic, with field-selectable high-frequency response caps and extremely low handling noise. Whether you need a tie-clip lavalier for an interview, a hair-hidden mic for drama, a water-resistant mic for water sports or hurricane reporting, or simply a small mic to hide in a prop flower vase, you'll never run out of applications for Countryman's B3 lavalier. The Countryman B3 omnidirectional wireless round lavalier microphone is ideal for theater, news anchors, interviews, lecturers, and general lavalier applications. It fits Pigtail Leads transmitter stripped and tinned models and for 2 wire 10k ohm 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