Bluetooth – Play and control music through your smart or MP3 player as well as apps like Spotify / Pandora, wirelessly. Weatherproof – The has been outfitted with the latest weatherproofing techniques such as PC board with conformal coating. Illuminated Controls – Let there be night! Navigate through the system with ease after the sun goes down with the backlit panel. Inputs – The USB port provides a vast audio library. Charge USB compatible devices. The auxiliary input is compatible with audio output from smarts and MP3 players. Outputs – Use the front pre-amp outputs to hook up your speakers (front left / front right). Specs – Dimensions: ” x ” x , Weight: lbs. Switchable US & EU Tuner Frequencies. We strongly encourage professional installation of this product to ensure proper and safe functionality.