MX392 and MX393 Microflex® Wired Boundary Microphones from Shure are equipped with features like programmable, silent membrane switches, logic inputs and outputs, and green LED indicators. The high-quality solution for a range of applications such as altars, boardrooms and distance learning centers, Microflex Boundary microphones feature interchangeable condenser cartridges. MX392: Surface-mount mic; LED logic input/switch logic output terminals, screw terminal connections, attached unterminated cable MX392 & MX392BE: Surface-mount mic; LED logic input/switch logic output terminals, screw terminal connections, attached unterminated cable; Bottom Exit option available FEATURES Flat frequency response across the vocal range for uncolored sound Interchangeable cardioid, supercardioid, and omnidirectional cartridges that provide optimal choice for each application Sleek, low-profile design for unobtrusive appearance Balanced, transformerless output for increased immunity to noise over long cable runs Programmable membrane on/off switch plus LED on/off indicator Available Options MX392/C Cardioid, Black MX392/S Supercardioid, Black MX392/O Omnidirectional, Black MX393/C Cardioid, Black MX393/S Supercardioid, Black MX393/O Omnidirectional, Black MX392BE/C Cardioid, Black, Bottom Exit Cable MX392BE/S Supercardioid, Black, Bottom Exit Cable MX392BE/O Omnidirectional, Black, Bottom Exit Cable