Interchangeable cartridges let you change its pickup pattern.
The Shure MX184 is a wired Lavalier electret condenser microphone designed for speech and vocal pickup, general purpose sound reinforcement, recording, and remote monitoring applications. It can be clipped to neckties, lapels, and other articles of clothing. The MX183 Lavalier microphone features a supercardioid mic cartridge and provides high rejection of ambient noise and a narrow pickup angle. Includes belt-clip preamp, rotatable tie clip, dual tie clip, and snap-fit windscreen.