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 PLMR52 is a 150-watt, 5.25' two-way, full-range speaker suitable for marine use. This speaker is equipped with a 1' high temperature voice coil for smooth mids and lows and a 12.7 mm neodymium dome tweeter for the sweetest highs. The molded ABS plastic basket keeps your sound distortion-free.