Pump out your own digital music library with the BOSS Audio Systems 611UAB In-Dash Single-DIN Mech-less Digital Media Receiver.Drive to your favorite playlists by hooking your smartphone or MP3 player up with the Auxiliary input, plug into the USB port or listen to the AM/FM radio.Bluetooth technology lets you stream music and make calls hands-free. Choosing your sound style is a cinch with the built-in Preset EQ. You can also conveniently charge your USB powered devices through the USB ports50 Watts x 4 Max PowerBass/Treble/Balance/Fader Controls and Preset Built-in EQSwitchable US and European TunerMech-less (No CD or DVD Player)Plays MP3/WMA/USB and SmartphonesInputs: USB, Aux. Outputs: Front & Rear Pre-AmpUSB ChargingBluetooth Wireless Audio Streaming and Hands-free CallingHands Free CallingBluetooth enabled for wireless hands-free calling and speaker listening when paired with a smartphone.Bluetooth Audio StreamingWirelessly stream audio via Bluetooth so you can listen to streaming music services such as Spotify and Pandora and control the track & volume up/down and play/pause through your system.USBSupports USB flash drive files up to 32 GB for music playback on units without monitors and music, photos, and video playback on units with monitors.USB ChargingCharge USB connected devices through the built-in 1A charger.Aux InputThe Aux Input allows you to connect to the audio output of an external device such as an MP3 Player or smartphone so you can enjoy your music through your system.Pre-Amp OutputThis unit's Pre-Amp outputs let you expand your system by adding up to 2 amps and/or signal processors.ID3 TAGID3 Tag allows the audio file to store and display additional data such as title, artist, album, track number and more.Switchable TunerThe selectable tuner function allows you to adjust this receiver's tuner to receive radio broadcasts in either the US or Europe.