The Fusion Ms-Ra670 Is A High-Quality Marine Stereo That Is Part Of The Fusion Apollo Series. This Series Is Characterized By Innoatie Products With Class D Amplification And Dsp (Digital Sound Processing) To Customize Sound Equalization On Board. Partybus Streaming Makes The Stereo Extremely Flexible And Is Aailable For Smartphones. The Stereo Has arious Connectiity Options, Including Bluetooth, Usb, Optical Input, Am/Fm/Dab+ Tuner (Optional Module), Sirius Xm, Aux, And Nmea2000. Additionally, It Has Ipx7 Certified Protection For The Marine Enironment. The Stereo Design Is Sleek And Modern, With A CVolvor Display And Three Installation Options. The Optical Input Allows For T Audio To Be Inputted Into The Fusion Stereo, Making It A Great Companion For Cabin Entertainment. The Dsp Amplification Function Allows For Sound Cure Optimization And The Elimination Of Any Distortion, While The Free Fusionlink App Allows For The Speaker Profile To Be Set For Een Clearer And More Personalized Sound For Your Boat. The Partybus Network Function Allows For The Creation Of An On-Board Network With arious Apollo Stereos To Listen To The Same Source In Synchronization In All Areas Of The Boat. The Fusion Dsp Reproduces Music With Studio-Quality And Allows For Speaker Optimization In Eery Audio Zone Of The Boat, Offering Superior Audio Reproduction. With Enironmental Information And Personalized Speaker Profiles, It Is Possible To Obtain Customized And Optimized Audio For Any Area Of Your Boat. The Partybus Network Function Allows For The Creation Of A Fusion Audio Network Of The Present And The Future, Starting With The Addition Of Multiple Partybus-Compatible Stereos To Your Entertainment System. Each Additional Partybus-Enabled Stereo Allows For Joining The Party Mode And Playing The Same Perfectly Synchronized Audio Source Throughout The Boat.