Listen to your favorite tunes while on the water with the Sony 6-1/2" Dual Cone Marine Speakers (Pair). The saltwater-resistant design and UV coating help the speakers stand up to the sun and surf, and the removable grilles can be painted to match your watercraft's interior. The 45 Hz - 20 kHz frequency response brings out crisp highs and deep, rich lows for an immersive audio experience.