Whats in the Box Marine digital media receiver Wired remote with zone controls USB extension cable 40 inches Mounting Screws for installation Waterproof wiring harness for installation Owner manual and warranty Rockville RGHR51 SingleDin Weather Resistant Digital Media Receiver with 5 Zones that each have independent volume control Includes wired remote with the ability to control the volume in each zone 4 TFT color display makes it easy to navigate menus Built in BluetoothUSBAMFM playback Builtin 72 x 4 Watt Peak high powered amplifier 28 x 4 RMS 3 pairs of preamp outputs each with independent volume controls 5 zones each with volume control zone 12 built in amplifier zones 3 4 5 are the RCA outputs Built in EQ with preset EQ curves Pop Classic Rock Jazz Beat 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 device USB plays video RCA AV input to play back a video source Rear camera input RCA Aux Input AMFM Radio Built In with 18 FM and 12 AM presets US and European tuning Bluetooth built in to stream audio from any Bluetooth enabled device USB Input Charges Your Phone Big easy to use buttons IP66 waterproof level meet ASTM B117 and ASTM D4329 standards Humiseal coated PCB board for waterproofing and protection from the elements USB is 500mA and 5V and supports 16GB max Specs of the built in amplifier TDA7850 power amplifier built in Low distortion even at top volumes Specifications Standard single din mounting 197 Mounting Height x 394 Mounting Length Inches this is the required mounting cutout Mounting Depth 323 Inches Front face plate 787 L x 394 H Inches