The KSM44A/SL Side-Address Condenser Vocal Microphone from Shure is a large-diaphragm, side-address condenser microphone with multiple polar pattern options, including cardioid, omnidirectional, and figure-8. The KSM44A features an externally biased, dual 1" diaphragm, extensive internal pop filtering and Prethos Advanced Preamplifier Technology for low self-noise.