Shure MX392/S Microflex Condenser Boundary Microphone (Supercardioid) - Wired Cable - No ConnectorMX392 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