3" JMS3RTL Bluetooth AM/FM/WB/USB Waterproof Stereo - BlackFeatures:. 160 watts (40W x 4). Bluetooth streaming audio (A2DP/AVRCP). Press and hold Bluetooth button for Quick Pairing in any mode. Waterproof (IPX6). Weatherband. AM/FM tuner. Rear USB input for MP3 enabled devices. Rear AUX input (RCA). Line-out audio (RCA). Daylight-readable segmented LCD display and LED backlit buttons. Electronic audio settings (Bass/Treble/Balance/Fader). Compact, self-contained design. Simple user interface. Conformal coated circuit boards. UV resistant finishes/materials (ASTM D4329). Corrosion resistant materials (ASTM B117). FCC/CE certified