The Velex VX 505 Black Wireless 4 Channel Class D Marine Bluetooth Amplifier is a powerful and versatile audio system designed for marine environments. With a sleek black design and Bluetooth connectivity, this amplifier allows you to easily stream your favorite music from your smartphone or other devices. With a RMS power output of 60W, this amplifier delivers clear and crisp sound, perfect for powering your marine audio system. Made by the trusted brand Velex, this amplifier is a reliable choice for enhancing your boating experience.