This whole-house volume control is a universal standard decorative flush in-wall or wall mount installation finishing plate for speaker and stereo system control. You can control speaker volume independently within various areas of your home, office or business applications. Add up to 8 pair of speakers throughout your house and control them all from this wall plate volume control. It maintains the full hi-fi audio frequency response with no low frequency roll-off. Our in-wall volume control works with all audio and video systems up to 100w power. A convenient audio source volume setting that allows you to control speaker volume independently in each audio zone.