hush is a convenient controller for your OnAir signaling. It allows for easy control over your OnAir indicator's LED signals. Its plug'n'play concept allows fast handling. Made for m!ka, hush perfectly fits the XLR-5 connector at the bottom end of your m!ka Mic Arm OnAir's cable. Simply plug'n'play! You're instantly in control of your LED OnAir signaling. Make most of the m!ka Mic Arm's dual-color LED indicator with hush. Your mic signal is looped through unprocessed. If you are looking for OnAir control with preamp and mute function, please check out the hush+ OnAir Controller.