Pyle's Hydra series speakers are water resistant 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 PLMR605B are 400-watt, 6.5" two-way, full-range speakers suitable for marine use. These black speakers are equipped with a ?" neodymium dome tweeter for rich highs and a 1" aluminum voice coil for accurate sound reproduction. Package includes a pair of speakers, installation hardware, and grills.