The Fusion MS-UD755 Marine Entertainment System is a high-quality stereo system designed specifically for marine environments. With its durable construction and powerful sound quality, this system is perfect for enjoying music while out on the water. The open box packaging indicates that this system is brand new and ready to provide top-notch entertainment for any boat or marine vehicle. Whether you're cruising along the coast or relaxing on a calm lake, the Fusion MS-UD755 Marine Entertainment System will enhance your audio experience.