3.5" Yellow Injection-Molded Polymica Cone Woofer, Specially Treated Rubber Edge Suspension, 20 oz. Magnet Structure, 1.75" Aluminum Film Piezo Tweeter, 120 Watts Rated Power, SPL: 88dB, Frequency Response: 100Hz-18kHz, 4 Ohm Impedance, Mounting Depth: 1.75", Includes: Speaker Wire, Mounting Screws, & Speaker Grills