Weatherproof design for outdoor use UV/corrosion-resistant material One-piece molded chassis with integrated drip-edge Silk dome tweeter 6.5" polypropylene woofer Magnet weight: 11 oz. Mounting depth: 2.3" Hole size: 5" Impedance: 4 ohms Frequency response: 65hz-20khz Max power handling: 75W. SPEAKER 6.5" UNIVERSAL