Boss Audio MR1308UABK Bluetooth Fully Marinized MP3 Compatible Digital Media Receiver w USB SD Memory Card Ports Aux Input [MR1308UABK] Tuesday Work Quotes Aesthetic Quotes for All. MR1308UABK Bluetooth Fully Marinized MP3 Compatible Digital Media Receiver w USB & SD Memory Card Ports & Aux Input Features: Weather Proof 50 Watts x 4 Max Power, Balance Fader Bass Treble and Preset built in EQ No CD or DVD Player, Plays MP3, WMA, FM AM, or Digital Media on Smart Phones Compatible with Audio out from Smart Phones and MP3 Players USB, SD, Aux, Input Front Pre Amp Outputs Detachable Front Panel, Wireless Remote Bluetooth Hands Free, Make and receive calls, Bluetooth Audio Streaming. Play and control music and apps like Spotify Pandora wirelessly Bluetooth Allows our Bluetooth equipped source units to make wireless hands free calls when paired with a Bluetooth equipped Smartphone. Communicate via the built in microphone on most of our units [or external microphone if provided] and listen thru your cars speakers. Owner's Manual (pdf) Brochure (pdf)