The IRC 1.1 is a small IR Receiver encased in a threaded tube.  It is designed to mount flush to a cabinet or wall surface with only a circular bezel exposed to the room.  Snap-on Color Cap bezels are included in White, Bone, Almond and Black.  It's Ambient Noise Suppression system acts to push down IRI, CFL, EMI or ESI noise sources so that stronger signals from IR remotes have adequate margin for command of the controlled component.  Part of SpeakerCraft's vaunted IR Repeater system.