The PVCS2 is an in-wall A/B speaker selector switch that installs in a junction box and makes it simple and easy to direct your home amplifier’s audio to two sets of speakers, such as one set indoors and one set outdoors. Activating or deactivating the A speakers, B speakers, is as easy as a push of a button.The included Decora-style wall plate means this switch will unobtrusively blend into your wall. Up to 120 watt power load handling.