The Shure MX418D/C Desktop-Mounted 18″ Cardioid Gooseneck Microphone with Preamp is a fully adjustable 18″ cardioid gooseneck microphone designed for podium and desktop use in speech, presentations, conferences and more. The MicroFlex gooseneck microphone series offers the flexibility of removable capsules offering cardioid (included), supercardioid, and omnidirectional polar patterns. In addition, the MicroFlex series features high sensitivity and balanced transformerless output for maximum immunity to electromagnetic hum and RF interference, even over long cable runs.