These round Virtually Invisible in-ceiling speakers are engineered with one 7" woofer and two strategically positioned 1" tweeters each, eliminating the need to aim the speakers into the room. Exclusive Bose Stereo Everywhere speaker performance provides balanced stereo sound over a wider area, with no drop-offs.The ultra slim bezel is attached directly to the speaker grille, allowing them to be easily painted in one simple step and blend elegantly into the room. And with no cloth scrim, there's no worry of excess paint clumping or soaking in. Plus, magnets allow them to snap on and off quickly. Installation is quick and easy with standard dogleg clamps.