The CRM102-RF is a boundary layer through table cardioid condenser microphone, with a built-in mechanism that will allow the user to make the microphone disappear without having to physically remove it from the table. This is achieved by simply pressing the top of the microphone downwards until it locks; then by pressing the microphone again it will raise itself back to its original position above the surface of the table. Engineered in high quality brass with built-in shock mount and RF filter. Standard finish: Black Nextel or Satin Nickel.