Shure MX396/C-TRI Tri-Element Boundary MicrophoneThe Microflex Multi Element Boundary microphone delivers a unique and versatile tool for conference room installations. Clean and simple in appearance, Multi Element Boundary mics come in two or three element configurations, combining the coverage of multiple microphones into one small, compact package. The MX396C TRI features: Dual Element 90 0 90 mic, adjustable to 120 120 120 degrees, Cardioid, back or bottom exit cable, mute output, LED input End