Featuring interchangeable cardioid, supercardioid, omnidirectional and bidirectional capsule options for superior versatility, the small diaphragm design provides superior audio with consistent, textbook polar responses in a form factor small enough to get close to the source in the tightest conditions.FeaturesInterchangeable polar pattern capsules attach to a compact XLR preamplifier with integrated XLR connections for the ultimate in low-profile application flexibility (each Beta 181 ships with one polar pattern capsule and one XLR preamplifier)Precision-engineered, compact side-address design features innovative locking ring to provide secure connection between capsule nd preamplifierAvailable in the following polar pattern options:- Beta 181/C (cardioid) for drum overhead, piano, acoustic instrument applications, M/S stereo technique (paired with Beta 181/BI)- Beta 181/S (supercardioid) for snare drum, acoustic instrument, close-miking applications- Beta 181/O (omnidirectional) for ambient/room, instrument ensemble applications- Beta 181/BI (bidirectional) for mono drum overhead, dual instrument sound source applications, Bulletin stereo technique (pair of Beta 181/BI)Capsules available separately for custom flexibilityFrequency response tailored for wide dynamic range applications for use in high SPL environmentsFurnished with stand adapter, windscreen and carrying case (carrying case will securely protect up to four polar pattern capsules)