The BETA 181/C Compact Cardioid Side-Address Instrument Microphone from Shure is a durable, small-diaphragm electret condenser microphone with an interchangeable capsule design. The Beta 181/C ships with a cardioid capsule for acoustic instrument, piano, and drum applications, as well as M/S stereo technique (in conjunction with BETA 181/BI). The microphone features a wide frequency response and rugged construction, making it ideal for the stage and recording studio. The Shure Beta 181/C Cardioid Compact Side-Address Instrument Microphone is a small-diaphragm, small-diaphragm, electret condenser microphone with an interchangeable capsule design. The BETA 181/C ships with a cardioid capsule for overhead, piano, and acoustic drum instrument applications, as well as an aesthetic M/S technique (combined with Beta 181/BI). The microphone features a wide frequency response and rugged construction, making it ideal for stage studio and recording applications..PZA MORE SPECS