The UW30 underwater speaker is equipped with a waterproof, three-conductor, 50-foot cable. Built for installation in both fresh and salt water pools, the UW30 can even be safely installed in ocean environments. The speaker is designed for permanent installation and completely submerged operation. Problems such as corrosion and electrolysis damage are completely eliminated by plastic construction. The 12.7-ounce ceramic magnet and state-of-the-art voice-coil construction ensure high-fidelity response with low distortion throughout the power range.