Shure RPW194 KSM11 Wireless Capsule Nickle

Full Product Description (From the manufacturer)

The Shure KSM11 wireless vocal microphone capsule is specifically optimized to more accurately protect and present artist vocals in modern digital wireless live sound productions. Featuring a premium cardioid condenser design, the KSM11 offers near-perfect off-axis rejection and a highly consistent polar response from an expertly crafted combination of transducer and shock mount technology.