The Shure BETA 181/O compact side-address omnidirectional instrument microphone is a durable, small-diaphragm electret condenser microphone with an interchangeable capsule design. The Beta 181/O ships with an omnidirectional capsule for ambient/room and instrument ensemble applications. The microphone features a wide frequency response and rugged construction, making it ideal for the stage and recording studio. The Shure beta 181/o omnidirectional compact side-address instrument microphone is a small-diaphragm, small-diaphragm, electret condenser microphone with an interchangeable capsule design. The beta 181/O ships with an omnidirectional capsule for ambient/room ensemble and instrument applications. The microphone features a wide frequency response and rugged construction, making it ideal for stage studio and recording applications..PZA MORE SPECS