The Pyle Marine Bluetooth Stereo Receiver and Speaker System Kit is designed for marine vehicles, offering high-quality sound and wireless convenience. This kit includes a single Din Bluetooth stereo receiver with MP3, Usb, and micro Sd card support, allowing for seamless audio streaming and hands-free calling. The four included 6.5-inch waterproof speakers provide full-range stereo sound and are ideal for marine environments. With built-in Bluetooth, Am/Fm radio, and illuminated button controls, this system makes it easy to enjoy your favorite music on the water. The durable, marine-grade components ensure long-lasting performance in tough conditions.