Sony DSX-M80 High Power Marine Media Receiver with Bluetooth Wireless Technology 4 x 100 W Power, Anywhere You Go – Enjoy deep, clean sound from a powerful amplifier with a 2 ohm speaker load, whether you are out at sea or on your off-road adventures. The UV-resistant finish can handle bright sunlight, and the anti-corrosive coating stands up to salty sea air without fading or cracking. Stay in Control of Your Journey – Enjoy 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 with Siri and Google Assistant. Sculpt your sound – Tailor the sound to your personal preference with the 10-band graphic equalizer. Sony DSX-M80 High Power Marine Media Receiver with Bluetooth Wireless Technology – Open Box. 4 x 100 W Power, Anywhere You Go – Enjoy deep, clean sound from a powerful amplifier with a 2 ohm speaker load, whether you are out at sea or on your off-road adventures. Mega Bass produces rich, punchy sound. Take calls hands-free with a built-in mic. Bring out the bass – Hit the EXTRA BASST7 button for deep, punchy sound at any volume. Switch between two settings for different intensities of bass boost. Build your own sound system – With the three 5 V pre-outs, you can add components of your choice, like extra amplifiers and subwoofers. 4 x 100 W Max. (45 W RMS) power output with 2 ohm speaker load option. Back-up memory saves your customized settings when there is no continuous power supply. Dual Bluetooth® connectivity lets you connect two smartphones simultaneously. Voice control with Siri Eyes Free and Android. Dual USB ports let you connect your smartphone and USB device simultaneously EXTRA BASS – Yes (1,2) DSO (DYNAMIC STAGE ORGANIZER) – Yes MAX OUTPUT POWER – 4 x 100 W PRE OUT – 3 x 5 V 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).