OSD Audio CW840SQ White 8-inch Poly Square In-Ceiling or In-Wall Speaker Pair Woofer: 8-Inch mica-filled polypropylene cone Tweeter: Pivoting 1-Inch Silk Dome Power handling: 150W, Impedance: 8 Ohms Frequency Response: 36Hz - 20kHz  2dB, Sensitivity: 90dB 1with 1m Cut Out Dimension: 9 5/16-Inch x 9 5/16-Inch, Unit Dimension: 10-Inch H x 10-Inch W x 3 1/2-Inch D Shipping: This item does not ship outside the U.S