The Shure MX185 Cardioid Wired Lavalier Microphone is designed to capture an accurate reproduction of vocals, instruments & other sounds. The microphone is designed to easly attach via clip to your shirt, neckties, & other types of clothing, which makes it suitable for presentations, interviews, & sound reinforcement. The cardioid polar pattern design helps to block noise & feedback at the off-axis sections of the capsule. The MX series lavalier microphone features interchangeable cartridges for quick & easy replacement, & also features a 4' (1.2 m) cable with a TA4-F connection. The included RK100PK preamplifier provides you with a standard 3-pin XLR connection. Other included accessories include a foam windscreen, tie clips, a zipper pouch, & a snap-fit windscreen.
The signal to noise ratio (SNR) is a useful and universal way of comparing the relative amounts of signal and noise for any electronic system; high ratios will have very little visible noise whereas the opposite is true for low ratios.