CSD2X2 Drop-In Ceiling Speaker is a full-range speaker that allows for fast and easy installation, which saves installation time, effort, and cost. CSD2X2 is a 2' x 2' speaker that fits perfectly intoplace in 2' x 2' ceiling grids – without needing to cut ceiling tiles or requiring the use of tile support rails. The CSD2X2 can also be easily installed in 2' x 4' ceiling grids – just make one cut to the ceiling tile, position the support rail (included), and drop the speaker into place. Includes volume control. "U" version has a bright white finish.