Jensen MS3ARTL AM/FM/USB/Bluetooth Compact 3.5" Round Waterproof Stereo with App Control Allows users to control all of the stereo's primary functions directly from their mobile device Features 160 watts, a USB input along with an auxiliary input and a line out (RCA) Large, daylight readable LCD display with blue backlit controls Utilizes UV resistant and corrosion resistant materials to guarantee it withstands life in a rough mobile environment Fits a 3" gauge hole