The Shure 565SD-LC Classic Unisphere Vocal Microphone is a cardioid dynamic microphone designed for use in public auditoriums, houses of worship, convention halls, and schools. The mic features a selectable dual-impedance operation and comes connected in low-impedance out of the box. It offers a wind and pop filter for vocals, a durable, wire-mesh front grille, and a silent, lockable On/Off switch.