Bogen BG-CSD2X2 Bogen 2 Pack 2X2 Drop in Ceiling Speaker Sold in pairs. One-piece assembly in 2 x 2 ceilings saves installation time effort and cost. Tile support rail for 2 x 4 ceilings included. Perforated grill over entire front. 8 Cone speaker with 10 oz. magnet and tweeter and 25/70V transformer.