4'' Dual Cone Full range Speakers - Molded ABS Plastic Basket - Black Color Marine Speaker.Completely Water Proof - 15 Oz. Circuit magnet - Complete Pair with wire & Mounting Hardware.For Marine or Car Door Use - Frequency Response: 100 Hz-18 Khz.Polypropelyne Cone with Cloth Surround - Impedance: 4 Ohms.Built-In Molded Grill - Mounting Depth: Only 3'' Pyle’s Hydra series speakers are waterproof and designed for use in your boat, on the dock, by the pool, or simply mounted outside. They’re designed with rust-proof mesh covers for quality protection. The PLMR41B is a pair of black 4” dual-cone, full-range speakers suitable for marine or car door use. The polypropylene cone accurately reproduces sound, and the molded ABS plastic basket keeps your sound distortion-free. Package includes mounting hardware and wires.