Check the listing for details. Bose Virtually Invisible 791 Series II InCeiling Speakers (Pair). Condition: New. Listed at 599.00 USD. Bose Virtually Invisible 791 in-ceiling speakers II deliver superior performance, easy installation and blend elegantly into ceilings and walls. Producing clear, full sound, these round in-ceiling speakers feature a single 7 in. woofer and two strategically positioned 1 in. tweeters, eliminating the need to aim the speakers into the room. Their compact size creates more placement options while still delivering superior performance.Engineered with exclusive Bose Stereo Everywhere speaker performance to provide balanced stereo sound over a wider area, the 791 in-wall speakers II fill every inch of the room evenly so there are no drop-offs. The ultra-slim bezel is attached directly to the speaker grille allowing them to be easily painted in one simple step.