Shure BETA181/C Ultra-Compact Side-Address Instrument Microphone with Cardioid Polar Pattern Capsule Interchangeable polar pattern capsules attach to a compact 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 and preamplifier Frequency response tailored for wide dynamic range applications for use in high SPL environments Furnished with stand adapter, windscreen and carrying case (carrying case will securely protect up to four polar pattern capsules)