Bose 191 flush-mount speakers blend into your room so beautifully, only their noteworthy performance will remind you they're there. Install them in your wall, connect to your stereo or surround sound components, and enjoy wide, spacious sound coverage while these Virtually Invisible speakers almost disappear. It's music to your ears--and easy on your eyes, thanks to proprietary Bose technologies. Articulated Array speaker design delivers spacious, natural sound throughout the listening area. And Stereo Everywhere speaker performance makes it possible to hear balanced audio almost anywhere in the room, unlike conventional home audio speakers that focus sound in one "sweet spot."