SONY DSX-M80 HIGH POWER MECHLESS BLUETOOTH USB AUX FM RADIO MARINE BOAT STEREOPRODUCT INFORMATION4 X 100W POWER, ANYWHERE YOU GOEnjoy deep, clean sound from a powerful amp with a 2 ohm speaker load option1 whether you are out at sea or on your off-road adventures. In addition to its anti-corrosive coating and UV-resistant finish, a newly added backup memory saves your custom presets and settings without needing a constant power supply; so when youre ready for your next adventure, your music will be too. TWICE AS CONNECTEDPair one Bluetooth phone for access to navigation, music playback, and communication features. You can connect a second phone for making and receiving hands-free calls. STAY IN CONTROL OF YOUR JOURNEYEnjoy helpful smartphone features without taking your eyes off the journey ahead. Voice control lets you manage music, get real-time directions, and communicate with contacts all via simple spoken commands. 4 X 100W POWER WITH UNCOMPROMISED SOUND QUALITYA built-in class D amp delivers huge power with minimal interference, for audio thats crystal clear even at its loudest. HEAR MUSIC YOUR WAYVarious customisation options let you adapt the audio experience to your liking. With the Subwoofer Direct and 2 ohm Speaker Load1 option, you can hook up a subwoofer directly to the built-in class D amplifier together with multiple speakers for deep, space-filling sound. 4 x 100w Max. (45w RMS) power output with 2 ohm speaker load option1 Backup memory saves your customised settings when there is no continuous power supply Dual Bluetooth connectivity lets you connect two smartphones simultaneously Voice control with Siri Eyes Free and Android2 Dual USB ports let you connect your smartphone and USB device simultaneously EXTRA BASS Yes (1,2) DSO (DYNAMIC STAGE ORGANIZER) Yes OUTPUT POWER 4 x 100W PRE OUT x 3 SUB OUT Yes AUX Yes (Front) BACKUP MEMORY Yes USB Yes (Front + Rear) BLUETOOTH Yes USB MEDIA TRANSFER PROTOCOL Yes USB ANDROID OPEN ACCESSORY PROTOCOL Yes (2.0)