Enrock EKMSB4 Pair 100W Black 4" Dual Cone Waterproof Stereo Speaker System 4" Dual Cone Full Range Speakers Completely Waterproof For Marine or Car Door Use Polypropelyne Cone with Cloth Surround Built-In Molded Grill Molded ABS Plastic Basket 15oz. Circuit Magnet Frequency Response: 100Hz-18kHz Impedance: 4 Ohms Mounting Depth: Only 1 1/3" Complete Pair with Wire & Mounting Hardware Color: Black