The Clarion Single-DIN In-Dash Marine grade M508 digital media receiver with Bluetooth Features has a mechanism-free design with no internal moving parts that can wear out over time. Its size makes it ideal as a Replacement head unit for smaller or older boats while its upscale design fits right in with today's highly stylized boat consoles and cabins. The M508 delivers solid performance, over a longer life span, while allowing users access to all the latest digital media and extensive connectivity options for a variety of applications. The LCD display is also easy to read while the whole unit is salt water- and UV-resistant.