Primacoustic VOXGUARD DT Ambient Field Controller, Desk Top VersionSimply rest it behind your microphone as a table top gobo to reduce ambience and echo. An open slot on both models allows the cable to pass through the back while allowing the microphone to be articulated for optimum positioning. Features High density acoustic foam liner High impact ABS outer shell Innovative rear access cable port Benefits Controls ambient space around the mic Creates an intimate sound field Delivers cleaner, more articulated voice