Rockville RGHR2 Marine Gauge Receiver w Bluetooth+(4) MB Quart NF1-116B Speakers Package Includes: (1) Rockville RGHR2 Marine Gauge Hole Receiver w Bluetooth USB, Radio + Wired Remote(2) (2) MB QUART NF1-116B 6.5" 80 Watt Marine 2-Way Coaxial Black Speakers For Boat Included in the box: Marine digital media receiverWired remote with 32.8 foot wireUSB extension cable (40 inches)Mounting bracketScrewsISO wiringOwner manual Description of RGHR2: The Rockville RGHR2 is the best gauge hole receiver on the market. We developed this to give you the best sound and the best features. Crazy loud! We put in a built in amplifier that is louder than other marine receivers on the market. The RMS power of the built in amp is 28 watt x 4 channels! It is crazy loud and can be heard over the sound of the wind when you are on the water! There is also a built in EQ to customize the sound to your taste. Included wired remote Rockville is the only brand on the market that I know of that supplies a wired remote with your radio. The wired remote is a must have for any marine radio. This is great for boats and other powersport applications. We also include an extra long 32.8 foot wire so you will not need any additional extension cables. Latest listening features The RGHR2 gives you many listening options. The Bluetooth technology allows you to stream audio from your Bluetooth enabled phone or other music player to the receiver. Our Bluetooth distance is 50 feet! There is also a USB input allowing you to listen to music stored on a thumb drive. You can plug in any audio device to the auxiliary input. There is a built in radio with crystal clear reception as well. Ability to connect multiple external amps This receiver makes your system expandable. Two sets of pre-amp outputs allow you to hook up external amps for your speakers and/or subs. This has front and switchable rear/sub pre-amp outputs so you can amplifiy your speakers and a subwoofer amplifier. Features of RGHR2: Rockville RGHR2 Weather Resistant Gauge-Hole Digital Media Receiver w/Bluetooth/USB/AM/FMFits into a standard Gauge-Hole (Tachometer) OpeningBuilt-in 72 x 4 Watt Peak high powered amplifier (28 x 4 RMS)Built in EQ with preset EQ curves (Pop, Class, Rock, Flat)IP66 Waterproof Certification (Tested to withstand the elements)USB Input to play back audio files store on a USB thumb drive or any other USB deviceRCA Aux InputAM/FM Radio Built In with 18 FM and 12 AM presets + US and European tuningBluetooth built in to stream audio from any Bluetooth enabled deviceUSB Input Charges Your PhoneTwo Sets of RCA Outputs (Front and a switchable rear/sub) allow you to connect external amplifiersBig easy to use buttonsBacklit LCD displayWired Remote Control Included (normally 50 dollar)Required cutout: 2.96" (diameter) x 2.75" (depth)USB is 500mA and 5V and supports 16GB maxDimensions:2.96" inch cutout mounting diameter4.45" inch diameter top plate2.75" mounting depth (not including top plate)3.91 inch depth included the top plateSpecs of the built in amplifier:TDA7851L quadbridge power amplifier4 x 72 watts peak @ 2 ohm4 x 48 watts peak @ 4 ohms4 x 28 watts RMS @ 4 ohmsHighly efficient even when running at 2 ohms!Low distortion even at top volumes Description of NF1-116B: The award winning MB Quart Nautic waterproof marine certified, 6.5 inch coaxial speaker for boat, RV and off-road vehicle audio installations. These speakers feature water resistant midrange cones, crystal clear tweeters and rust resistant connectors. Sold in pairs with grills in black. Features of NF1-116B: Tweeters .75 Inch Composite Dome: Very smooth musical response, high output with minimal required amplifier power.Cone Material 6.5 inch Composite Poly Midrange: Water resistant composite polypropylene cone with temperature stable UV Butyl rubber surround mounted on a lightweight composite frame.Surround / Cone Coupling UV Butyl: Butyl Rubber remains musical in all weather. Does not stiffen in cold.​Voice Coil / Former Assembly High Temperature Voice Coil and Former: Voice coil is high temperature copper, wound on an aluminum former which allows the voice coil to handle more power while remaining light in weight.Spider Woven fiber composite spider to stabilize the cone and voice coil in all musical situations.Cooling System Front and rear venting allows air passage through the spider and back plate to exchange air over the voice coil.Crossover 6dB high-pass: Clean and simple crossover design allows the most possible signal to get to the speaker from your source unit or amp.Tweeter Hardware Mounting hardware are Die Cast for strength and powder coated to resisted outdoor elements of sun, spray and dust.Frame Poly Composite Frame: Composites add strength to the frame without adding distortions or harmonics that can affect the tonal quality of the speaker and are weather resistant!Motor High Energy Motor assembly: High energy iron ferrite magnet for higher output and smaller overall size.Grills Composite Integrated: UV treated against sun fade and waterproof and are integrated into speaker frame for simple installation.Hardware Stainless Steel Screws Specification of NF1-116B: Weight: 3.25 lbsSeries: NauticColor: BlackWarranty: 1 YearIPX Rating: IPX67CEA Standards: CEA426BSpeaker RMS Power Handling (watts): 40Speaker Peak Power Handling (watts): 80Speaker Impedance (ohms): 35Hz-21kHzSpeaker Sensitivity: 89dBSpeaker Mounting Diameter / Cut Out (in): 5Speaker Outside Diameter (in): 7Speaker Mounting Depth / Chassis Depth (in): 2.29Speaker Size (in): 6.5