The Shure CVG18-B/C is a professional gooseneck condenser microphone designed for permanent installation in conference rooms, boardrooms, courtrooms, and houses of worship. It combines a high-quality cardioid condenser capsule with an 18-inch flexible gooseneck and a low-profile boundary base. The boundary design places the microphone flush against a table or other flat surface, which utilizes the pressure zone principle to provide a smoother frequency response, increased sensitivity, and improved gain before feedback by eliminating phase cancellations from reflected sound waves. The 18-inch gooseneck allows for precise positioning to accommodate different speaker heights or to be shared by multiple participants around a table.

The microphone features a cardioid polar pattern, focusing on sound sources directly in front while rejecting ambient noise and reverberation from the sides and rear, which is critical for clear audio in teleconferencing and voice reinforcement systems. As a condenser microphone, it requires phantom power (typically 11-52V DC) supplied by a connected mixer, DSP, or conferencing codec. The integrated base is weighted for stability and designed for a clean, unobtrusive appearance. The "B/C" designation often refers to a specific connector type or finish for integrated systems.

This microphone is engineered for reliability in commercial environments, offering consistent, high-quality speech reproduction. Its combination of boundary layer technology, directional pickup, and flexible positioning makes it an ideal, discrete solution for installed sound applications where aesthetics and clear audio capture are equally important.