A:Answer The sound bar is 35" wide and at its tallest point, it's height is about 2½ to 3". The wireless woofer is a larger unit, about the size of a small shoebox. If you check the specifications on the listing, I believe the exact dimensions are given there. The sound bar does not need to be attached to the TV, although it can be attached if the TV is on a wall mount. It can also sit on a countertop, shelf or table above or below the set. Just remember, the closer the sound bar is located to the TV, the better the sound will appear to sync with the visuals. The woofer can be located further away from the TV.