The MSC-PV module is a lighted switch for turning a sound system on and off, and a 10K potentiometer for controlling the volume of the sound system when it is on. The module mounts into a standard electrical box (not provided), and is finished off with a matching decora coverplate. Connections on the backside of the module are made via a euro style terminals. The MSC-PV module is available in brown, ivory or white.