The Kenwood KMR-550U CD/MP3/USB Receiver is designed to conveniently play CDs and MP3s in a marine environment. Illuminated USB and AUX ports are located on the front with a sliding cover. Control your iPod, iPhone, or other MP3 device through the Kenwood KMR-550U receiver. Also supports music link via Android devices as well as Pandora control for your iPhone. The full-dot display of the KMR-550U receiver can be set to display up to three lines of text. AM/FM tuner with presets. Sirius XM ready. LCD marine wired-remote interface (remote not included). Three 2.5V preamp outputs.