The Pyle Bluetooth Marine Stereo Kit includes a radio receiver and (2) waterproof 5.25-inch marine grade speakers. The Single Din headunit features Bluetooth for wireless music streaming and hands-free calling. Additional inputs include a Usb flash drive reader, Micro Sd memory card reader, and Aux input jack for connecting various devices. The included component speakers provide full-range stereo sound reproduction, making it ideal for marine vehicles, automobiles, or off-road applications. The built-in microphone allows for hands-free communication, while the Lcd display and remote control offer easy access and control of your sound system.