INCLUDES: 4 Polk Audio MC80 2 Way In Ceiling 8 inch Speaker .75 inch Aimable Silk Dome Tweeter, 8 Inch Dynamic Balance Woofer Moisture resistant Perfect for Damp and Humid use in a Bathroom, Kitchen, or Covered Porch. Ideal for music playback and home theater surround channels Impedance: 8 ohms, Sensitivity: 92 dB, Frequency response: 50 20,000 Hz Cutout diameter: 9.37 inches, Mounting depth: 4.1 inches, Frame Diameter: 10.5 inches. Includes White Paintable Grilles Bundle includes 4 Polk Audio MC80 2 Way In Ceiling 8 inch Speakers. EXPERIENCE DYNAMIC BUILT IN SOUND with the in ceiling MC80 speaker, perfect for multi zone audio systems. Precision tuned to create excellent AMBIENT ACOUSTIC PERFORMANCES WITH EXTRAORDINARY DETAIL AND NATURAL MUSICALITY, EVEN AT LOW VOLUME. Equipped with Dynamic Balance technology and superior components an 8 inch midrange and 0.75 inch aim ready swivel tweeter provide SMOOTH, WIDE RANGE RESPONSE AND CLEAR, DETAILED HIGHS, ENSURING A UNIFORM SOUND COVERAGE IN LARGER ROOMS TOO. LISTEN TO YOUR FAVORITE MUSIC IN ANY INDOOR OR ENCLOSED SPACE including a bathroom, kitchen, sunroom, or a covered porch with the speaker's MOISTURE RESISTANT DESIGN featuring rustproof stainless steel hardware and durable butyl rubber surrounds. SIMPLE SETUP Easy one cut, drop in installation with Perfect Fit templates, a precision flange, pre construction brackets (sold separately), and rotating cams to secure the speaker and ensure vibration free efficiency without any extra assembly.