Item is brand new in original packaging as seen in pics above. Feel free to message me with any questions! Bluetooth – Play and control music through your smartphone or MP3 player as well as apps like Spotify / Pandora, wirelessly. Weatherproof – The MGV500B has been outfitted with the latest weatherproofing techniques such as front panel UV & PC board with conformal coating. It is IPX5 rated water resistant / dust proof. The MGV500B does not have a CD mechanism. Accessory Button (Start Button) – Turn on and off accessories such as lightbars, LED Whips and more. A relay is needed and is not included. Inputs – Front & rear camera, USB audio, USB charging. Aux-in compatible with audio output from smartphones and MP3 players. Outputs – Use the front & rear or subwoofer pre-amp outputs to hook up your speakers or subwoofer. Specs – 4.5″ x 4.5″ x 3.7, 1.3 lbs. Switchable US & Europe tuner frequencies, NOAA weather band tuner, Zero Current Draw Memory (Retains memory if battery is disconnected), 60 Watts × 4 Channel. We strongly encourage professional installation of this product to ensure proper and safe functionality.