3-way rectangular in-wall loudspeaker with patented PowerPort bass venting system. It provides easy to install and can build a complete high performance audio system that blends seamlessly into decor. Tailor the performance to suit your room environment with superior audio controls to guarantee the most spectacular sound. This speaker features exclusive wafer-thin Sheer-Grille. Grilles have nearly transparent, ultra-small size. It is acoustically inert for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.