Sony DSX-M55BT

• marine digital media receiver with AM/FM tuner (doesn't play CDs)
• built-in amplifier (17 watts RMS CEA-2006/55 peak x 4 channels)
• integrated Bluetooth with Simple Secure Pairing
• plays MP3 and WMA files
• partially detachable face with low glare LCD display
• conformal-coated circuit boards resist moisture
• USB port compatible with iPod®, iPhone®, Android™ smartphone

Audio features:

• Dynamic Reality Amp
• 5-band equalizer with 8 presets
• Digital Clarity Tuner with Radio Data System (RDS)

Expandability:

• compatible with SiriusXM's aftermarket satellite radio tuner (sold separately, subscription required)
• inputs: front USB input, front AUX input
• outputs: 2-volt rear-channel & subwoofer RCA preouts

Other features and specs:

• Passenger Control for iPhone and iPod devices
• wireless remote control
• CEA-2006 compliant
• chassis width: 7.175"
• chassis height: 2.085"
• nose width: 7.385"
• nose height: 2.285"
• warranty: 1 year