The Countryman B3W5FF05CSR B3 is a premium, miniature omnidirectional lavalier microphone renowned for its discreet size, exceptional audio quality, and rugged reliability. Designed for the most demanding professional applications in broadcast, film, theater, and presentation, it captures natural, clear voice reproduction with a wide frequency response and low self-noise. The microphone's omnidirectional polar pattern provides consistent pickup from all directions, making it forgiving of minor placement variations and ideal for situations where the talent may move their head while speaking. Its extremely small capsule, finished in a matte Cocoa color, allows it to be hidden easily under clothing or on talent with minimal visibility, maintaining a clean visual aesthetic on camera.

This specific model is equipped with a 3.5 mm (1/8") locking connector, designed for secure attachment to bodypack transmitters from Lectrosonics, Sony, and other manufacturers that utilize this standard. The locking mechanism ensures a reliable connection that will not disconnect accidentally during vigorous movement or cable tugs, which is critical in live production environments. The microphone comes with a comprehensive accessory kit (indicated by the "CSR" suffix) that typically includes various mounting options, windscreens, and adhesive tabs to facilitate quick and secure installation on a wide range of clothing and skin types.

Built to Countryman's exacting standards, the B3 features a robust design that withstands the physical stresses of daily professional use, including resistance to moisture and perspiration. The supplied cable is thin, flexible, and designed to minimize handling noise. Prized by audio engineers worldwide, the Countryman B3 lavalier delivers broadcast-quality audio in a nearly invisible package, making it a go-to choice for critical voice capture where both sonic excellence and discretion are paramount.